Linear horn antenna with conical collar
12609454 ยท 2026-04-21
Assignee
Inventors
Cpc classification
International classification
Abstract
Apparatuses, systems, and methods for a linear horn antenna with a conical collar are provided. For example, a linear horn antenna has a conical collar and a plurality of antenna feeds. The conical collar is located a first distance from a first end of the linear horn antenna. The plurality of antenna feeds include a first antenna feed and a second antenna feed. The linear horn antenna is configured to generate one or more electromagnetic fields based on one or more excitation signals received via at least one of the plurality of antenna feeds and configured to generate one or more received signals at at least one of the plurality of antenna feeds based on one or more received electromagnetic fields.
Claims
1. An apparatus comprising: a linear horn antenna with a linear horn body, a conical collar, and a plurality of antenna feeds; a plurality of ridges internal to a linear horn body of the linear horn antenna configured to generate electromagnetic fields including at least a first ridge, a second ridge, a third ridge, and a fourth ridge; wherein the conical collar is located on an exterior of the linear horn body at a first distance from a first end of the linear horn antenna, wherein the plurality of antenna feeds are located at a second end of the linear horn body that is opposite the first end; wherein the plurality of antenna feeds includes a first antenna feed and a second antenna feed, wherein the first antenna feed is isolated from the second antenna feed, wherein the first antenna feed is electrically connected to the first ridge and the third ridge, and where the second antenna feed is electrically connected to the second ridge and the fourth ridge; and wherein the linear horn antenna is configured to generate one or more electromagnetic fields based on one or more excitation signals received via at least one of the plurality of antenna feeds and configured to generate one or more received signals at at least one of the plurality of antenna feeds based on one or more received electromagnetic fields.
2. The apparatus of claim 1, wherein the conical collar is tapered toward the second end of the linear horn antenna.
3. The apparatus of claim 1, wherein the conical collar has a first end associated with the first end of the linear horn antenna, and wherein the first end of the conical collar is offset from the first end of the linear horn antenna by a first length.
4. The apparatus of claim 1, wherein the plurality of ridges are configured with a taper that broadens towards the first end of the linear horn antenna.
5. The apparatus of claim 1, wherein the linear horn antenna includes a back plate at the second end of the linear horn antenna.
6. The apparatus of claim 1, wherein the linear horn body has a cylindrical shape and the second antenna feed is located on the exterior of the cylindrical shape of the linear horn body of the linear horn antenna 90 degrees from a location of the first antenna feed on the exterior of the cylindrical shape of the linear horn body.
7. A system comprising: a linear horn antenna with a linear horn body, a conical collar, and a plurality of antenna feeds; a plurality of ridges internal to a linear horn body of the linear horn antenna configured to generate electromagnetic fields including at least a first ridge, a second ridge, a third ridge, and a fourth ridge; wherein the conical collar is located on an exterior of the linear horn body at a first distance from a first end of the linear horn antenna, wherein the plurality of antenna feeds are located at a second end of the linear horn body that is opposite the first end; wherein the plurality of antenna feeds includes a first antenna feed and a second antenna feed, wherein the first antenna feed is isolated from the second antenna feed, wherein the first antenna feed is electrically connected to the first ridge and the third ridge, and where the second antenna feed is electrically connected to the second ridge and the fourth ridge; wherein the linear horn antenna is configured to generate one or more electromagnetic fields based on one or more excitation signals received via at least one of the plurality of antenna feeds; a memory having one or more computer readable instructions; at least one processor communicatively coupled with the memory and executing the one or more computer readable instructions stored in the memory is configured to: generate the one or more excitation signals; transmit the one or more excitation signals to at least one of the plurality of antenna feeds of the linear horn antenna; and generate one or more received signals at at least one of the plurality of antenna feeds based on one or more received electromagnetic fields.
8. The system of claim 7, wherein the conical collar is tapered toward the second end of the linear horn antenna.
9. The system of claim 7, wherein the conical collar has a first end associated with the first end of the linear horn antenna, and wherein the first end of the conical collar is offset from the first end of the linear horn antenna by a first length.
10. The system of claim 7, wherein the plurality of ridges are configured with a taper that broadens towards the first end of the linear horn antenna.
11. The system of claim 7, wherein the linear horn antenna includes a back plate at the second end of the linear horn antenna.
12. The system of claim 7, wherein the linear horn body has a cylindrical shape and the second antenna feed is located on the exterior of the cylindrical shape of the linear horn body of the linear horn antenna 90 degrees from a location of the first antenna feed on the exterior of the cylindrical shape of the linear horn body.
13. A method comprising: generating one or more excitation signals; transmitting the one or more excitation signals to at least one of a plurality of antenna feeds of a linear horn antenna with linear horn body and a conical collar; wherein a plurality of ridges internal to the linear horn body of the linear horn antenna are configured to generate electromagnetic fields including at least a first ridge, a second ridge, a third ridge, and a fourth ridge; wherein the conical collar is located on an exterior of the linear horn body at a first distance from a first end of the linear horn antenna, wherein the plurality of antenna feeds are located at a second end of the linear horn body that is opposite the first end; wherein the plurality of antenna feeds includes a first antenna feed and a second antenna feed, wherein the first antenna feed is isolated from the second antenna feed, wherein the first antenna feed is electrically connected to the first ridge and the third ridge, and where the second antenna feed is electrically connected to the second ridge and the fourth ridge; wherein the linear horn antenna is configured to generate one or more electromagnetic fields based on one or more excitation signals received via at least one of the plurality of antenna feeds; receiving the one or more excitation signals at least one of the plurality of antenna feeds; generating one or more electromagnetic fields with the linear horn antenna; and generating one or more received signals at at least one of the plurality of antenna feeds based on one or more received electromagnetic fields.
14. The method of claim 13, wherein the conical collar is tapered toward the second end of the linear horn antenna.
15. The method of claim 13, wherein the conical collar has a first end associated with the first end of the linear horn antenna, and wherein the first end of the conical collar is offset from the first end of the linear horn antenna by a first length.
16. The method of claim 13, wherein the plurality of ridges are configured with a taper that broadens towards the first end of the linear horn antenna.
17. The method of claim 13, wherein the linear horn antenna includes a back plate at the second end of the linear horn antenna.
Description
BRIEF SUMMARY OF THE DRAWINGS
(1) Having thus described certain example embodiments of the present disclosure in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
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DETAILED DESCRIPTION
(13) Some embodiments of the present disclosure will now be described more fully herein with reference to the accompanying drawings, in which some, but not all, embodiments of the disclosure are shown. Indeed, various embodiments of the disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like reference numerals refer to like elements throughout.
(14) As used herein, the term comprising means including but not limited to and should be interpreted in the manner it is typically used in the patent context. Use of broader terms such as comprises, includes, and having should be understood to provide support for narrower terms such as consisting of, consisting essentially of, and comprised substantially of.
(15) The phrases in various embodiments, in one embodiment, according to one embodiment, in some embodiments, and the like generally mean that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure and may be included in more than one embodiment of the present disclosure (importantly, such phrases do not necessarily refer to the same embodiment).
(16) The word example or exemplary is used herein to mean serving as an example, instance, or illustration. Any implementation described herein as exemplary is not necessarily to be construed as preferred or advantageous over other implementations.
(17) If the specification states a component or feature may, can, could, should, would, preferably, possibly, typically, optionally, for example, often, or might (or other such language) be included or have a characteristic, that a specific component or feature is not required to be included or to have the characteristic. Such a component or feature may be optionally included in some embodiments or it may be excluded.
(18) The use of the term circuitry as used herein with respect to components of a system or an apparatus should be understood to include particular hardware configured to perform the functions associated with the particular circuitry as described herein. The term circuitry should be understood broadly to include hardware and, in some embodiments, software for configuring the hardware. For example, in some embodiments, circuitry may include processing circuitry, communications circuitry, input/output circuitry, and the like. In some embodiments, other elements may provide or supplement the functionality of particular circuitry.
Overview
(19) Various embodiments of the present disclosure are directed to an improved linear horn antenna. In particular, various embodiments of the present disclosure are directed to apparatuses, system, and method for a linear horn antenna with conical collar.
(20) Various embodiments of a linear horn antenna with conical collar in accordance with the present disclosure include a metallic conical collar located near a first end of a linear horn antenna having an aperture. This linear horn antenna with conical collar is configured to generate an electromagnetic field that radiates out of the front of the antenna, which may be referred to as the boresight, while minimizing radiation (e.g., back lobes) out the back or rear of the linear antenna.
(21) Various embodiments of the present disclosure provide for improved performance over conventional linear horn antennas. Such improvements may depend on frequencies of excitation signals. These may include an increase in low frequency gain (e.g., approximately 2 dB in various embodiments) and reduced high frequency gain (e.g., approximately 1.5 dB in various embodiments) resulting in a flatter response. Additionally, various embodiments may also improve the beamwidth, front-back ratio, and power handling. The tuning of this antenna may be based on, among other things, the frequency of the excitation signal, the length from the front of the linear horn antenna to the start of the conical collar, and the size of the conical collar, including the taper and flare.
Exemplary Apparatuses, Systems, and Methods
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(23) The linear horn body 110 may be a cylindrical shape that has a first end and a second end. The conical collar 120 is near the first end. The first end is open or has an opening or aperture. The second end terminates with a backplate 130. The linear horn body 110 may have an outer surface area that is cylindrically shaped. The linear horn body 110 may have a hollow interior that includes a plurality of ridges 112. Various embodiments of a dual linear horn with conical collar 100 have 4 ridges 112a first ridge 112A, a second ridge 112B, a third ridge 112C, and a fourth ridge 112D. Each of these four ridges 112 are, respectively, located 90 degrees from the adjacent two ridges on the interior of the cylindrical shape of the linear horn body. In various embodiments, the first feed 102A is associated with the first ridge 112A and the third ridge 112C and the second feeds 102B is associated with the second ridge 112B and the fourth ridge 112D. For example, a first excitation signal received at the first feed 102A may propagate down the first ridge 112A and the third ridge 112C. Similarly, a second excitation signal received at the second feed 102B may propagate down the second ridge 102B and the fourth ridge 112D. An excitation signal propagating down the respective ridges generates electromagnetic fields, such as described further herein. In various embodiments, portions of the linear horn body 110 may be similar or a variation of slot antenna and/or a Vivaldi notch antenna.
(24) The conical collar 120 is located near the first end of the linear horn body 110. The conical collar 120 may have a first side facing in the same direction of the bore of the linear horn body 110, which is illustrated in
(25) The shape and location of the conical collar 120 with respect to the linear horn body 110 provides for multiple improvements, including a more constant or flatter gain over multiple frequencies. Additionally and/or alternatively, it may provide for improved beamwidth response over multiple frequencies. Additionally and/or alternatively, it may provide for an improved front-to-back ratio, particularly at lower frequencies.
(26) The backplate 130 may be a back short portion. In various embodiments, the backplate 130 may be configured to suppress some of the radiation pattern generated by the dual linear horn with conical collar 100, such as one or more back lobes of an electromagnetic field generated by the dual linear horn with conical collar 100. In various embodiments the backplate 130 may also provide additional gain for the electromagnetic field out of the front of the linear horn body 110. For example, the dual linear horn with conical collar 100 may generally direct or reflect some of the back lobe of a generated electromagnetic field forward through the bore sight or front of the linear horn body 110. In various embodiments, the backplate 130 may be metallic.
(27) In various embodiments, the linear horn body 110 may be printed, such as with additive manufacturing (e.g., 3D printing), with a first material and the backplate 130 may be machined with a second material (e.g., a metal) before the linear horn body 110 and the backplate 130 are joined.
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(29) In various embodiments, the size and shape of the conical horn may change, which may vary performance of the dual linear horn with conical collar 100. For example, the diameter, setback length (L) of the conical collar 120 from the front of the linear horn body 110, and taper of the conical collar 120 may change the electromagnetic field generated by the dual linear horn with conical collar 100.
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(35) The dual in the dual linear horn with conical collar 100 refers to the two inputs of first feed 102A and 102B. In various embodiments, these inputs may also be referred to, respectively, as J1 and J2. Each of first feed 102A and second feed 102B may be a coaxial connection fed into the interior of the linear horn body 110.
(36) In various embodiments, there may be only one input 102A. In various embodiments with only one input of first feed 102A, then would only have one coax feeding a single set of ridges of a ridges 112A and 112C. With the dual linear horn with conical collar 100 there are two feeds and thus two sets of ridges-a first set of the first ridge 112A and third ridge 112C and a second set of the second ridge 112B and fourth ridge 112D. Exciting the respective sets of ridges generates the radiation that is an electromagnetic field. The 90 degree offsets between the sets of ridges allow for different polarizations to be used based on how different input signals fed to the dual linear horn with conical collar 100. As illustrated in
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(38) An electromagnetic field generated by the dual linear horn antenna with conical collar 100 based on excitation signals received via a first feed 102A (J1) and second feed 102B (J2) contains an electric field in an E-Plane and a magnetic field in a H-Plane. In various embodiments, the dual linear horn antenna with conical collar 100 may be excited with different combinations of excitation signals, and
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(41) As will be appreciated,
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(52) At operation 1002, receive excitation signal(s). the dual linear horn with conical collar 100 may receive one or more excitation signals. These may be provided, for example, from a processor that generates these signals. In various embodiments, a first excitation signal may be provided to first feed 102A while no excitation signal is provided to second feed 102B, a second excitation signal may be provided to second feed 102B while no excitation signal is provided to first feed 102A, or a first excitation signal may be provided to first feed 102A and a second excitation signal may be provided to second feed 102B.
(53) At operation 1004, excite dual linear horn antenna with conical collar with the excitation signal(s). The dual linear horn with conical collar 100, having received the one or more excitation signal(s), may excite the dual linear horn with conical collar 100, particularly the ridges 112 that are associated with the feed 102 that received the excitation signal(s).
(54) At operation 1006, generate one or more electromagnetic fields based on the excitation signal(s). The excited dual linear horn with conical collar 100 generates one or more electromagnetic fields based on the excitation signal(s). The one or more electromagnetic fields radiate from the dual linear horn with conical collar 100, particularly in a forward direction (e.g., in the boresight direction).
(55) In addition to transmitting, antenna reciprocity allows for the dual linear horn antenna with conical collar in accordance with one or more embodiments of the present disclosure to be used as both a transmit antenna as well as a receive antenna. When receiving, the feeds may provide one or more signals based on the electromagnetic fields received by the dual linear horn antenna with conical collar. A method of receiving signals may generally be the reverse of transmitting signals. For example, it may include receiving one or more electromagnetic fields, excite dual linear horn antenna with conical collar with the one or more electromagnetic fields, and generating received signal(s) that may be output via the first feed 102A and/or the second feed 102B to a processor.
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(57) The processor 1102, although illustrated as a single block, may be comprised of a plurality of components and/or processor circuitry. The processor 1102 may be implemented as, for example, various components comprising one or a plurality of microprocessors with accompanying digital signal processors; one or a plurality of processors without accompanying digital signal processors; one or a plurality of coprocessors; one or a plurality of multi-core processors; processing circuits; and various other processing elements. The processor may include integrated circuits. In various embodiments, the processor 1102 may be configured to execute applications, instructions, and/or programs stored in the processor 1102, memory 1104, or otherwise accessible to the processor 1102. When executed by the processor 1102, these applications, instructions, and/or programs may enable the execution of one or a plurality of the operations and/or functions described herein. Regardless of whether it is configured by hardware, firmware/software methods, or a combination thereof, the processor 1102 may comprise entities capable of executing operations and/or functions according to the embodiments of the present disclosure when correspondingly configured.
(58) The memory 1104 may comprise, for example, a volatile memory, a non-volatile memory, or a certain combination thereof. Although illustrated as a single block, the memory 1104 may comprise a plurality of memory components. In various embodiments, the memory 1104 may comprise, for example, a random access memory, a cache memory, a flash memory, a hard disk, a circuit configured to store information, or a combination thereof. The memory 1104 may be configured to write or store data, information, application programs, instructions, etc. so that the processor 1104 may execute various operations and/or functions according to the embodiments of the present disclosure. For example, in at least some embodiments, a memory 1104 may be configured to buffer or cache data for processing by the processor 1102. Additionally or alternatively, in at least some embodiments, the memory 1104 may be configured to store program instructions for execution by the processor 1102. The memory 1104 may store information in the form of static and/or dynamic information. When the operations and/or functions are executed, the stored information may be stored and/or used by the processor 1102.
(59) The communication circuitry 1106 may be implemented as a circuit, hardware, computer program product, or a combination thereof, which is configured to receive and/or transmit data from/to another component or apparatus. The computer program product may comprise computer-readable program instructions stored on a computer-readable medium (e.g., memory 1104) and executed by a processor 1102. In various embodiments, the communication circuitry 1106 (as with other components discussed herein) may be at least partially implemented as part of the processor 1102 or otherwise controlled by the processor 1102. The communication circuitry 1106 may communicate with the processor 1102, for example, through a bus 1110. Such a bus 1110 may connect to the processor 1102, and it may also connect to one or more other components of the processor 1102. The communication circuitry 1106 may be comprised of, for example, transmitters, receivers, transceivers, network interface cards and/or supporting hardware and/or firmware/software, and may be used for establishing communication with another component(s), apparatus(es), and/or system(s). The communication circuitry 1106 may be configured to receive and/or transmit data that may be stored by, for example, the memory 1104 by using one or more protocols that can be used for communication between components, apparatuses, and/or systems.
(60) The input/output circuitry 1108 may communicate with the processor 1102 to receive instructions input by an operator and/or to provide audible, visual, mechanical, or other outputs to an operator. The input/output circuitry 1108 may comprise supporting devices, such as a keyboard, a mouse, a user interface, a display, a touch screen display, lights (e.g., warning lights), indicators, speakers, and/or other input/output mechanisms. The input/output circuitry 1108 may comprise one or more interfaces to which supporting devices may be connected. In various embodiments, aspects of the input/output circuitry 1108 may be implemented on a device used by the operator to communicate with the processor 1102. The input/output circuitry 1108 may communicate with the memory 1104, the communication circuitry 1106, and/or any other component, for example, through a bus 1110.
(61) The dual linear horn antenna with conical collar 1112 may communicate with the processor 1102 to perform one or more operations or to receive a signal as described herein. In various embodiments, dual linear horn antenna with conical collar 1112 may receive one or more excitation signals from the processor 1102, communications circuitry 1106, and/or input/output circuitry 1108, such as to start or stop operations. In various embodiments, the dual linear horn antenna with conical collar 1112 is incorporated or located in the device 1100. It will also be appreciated that the dual linear horn antenna with conical collar 1112 may be external to the device 1100 to all the dual linear horn antenna with conical collar 1112 to be mounted in particular location or orientation.
(62) It should be readily appreciated that the embodiments of the systems and apparatuses, described herein may be configured in various additional and alternative manners in addition to those expressly described herein.
CONCLUSION
(63) Operations and/or functions of the present disclosure have been described herein, such as in flowcharts. The flowchart blocks support combinations of means for performing the specified operations and/or functions and combinations of operations and/or functions for performing the specified operations and/or functions. It will be understood that one or more blocks of the flowcharts, and combinations of blocks in the flowcharts, can be implemented by special purpose hardware-based computer systems which perform the specified operations and/or functions, or combinations of special purpose hardware with computer instructions.
(64) While this specification contains many specific embodiments and implementation details, these should not be construed as limitations on the scope of any disclosures or of what may be claimed, but rather as descriptions of features specific to particular embodiments of particular disclosures. Certain features that are described herein in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
(65) While operations and/or functions are illustrated in the drawings in a particular order, this should not be understood as requiring that such operations and/or functions be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, operations and/or functions in alternative ordering may be advantageous. In some cases, the actions recited in the claims may be performed in a different order and still achieve desirable results. Thus, while particular embodiments of the subject matter have been described, other embodiments are within the scope of the following claims.
(66) While this detailed description has set forth some embodiments of the present invention, the appended claims cover other embodiments of the present invention which differ from the described embodiments according to various modifications and improvements.
(67) Within the appended claims, unless the specific term means for or step for is used within a given claim, it is not intended that the claim be interpreted under 35 U.S.C. 112, paragraph 6.