A band-pass filter device includes a waveguide filter, a first circuit board section, a first antenna, a second circuit board section, and a second antenna. The waveguide filter includes a high-pass portion, a connection portion, and a low-pass portion. The first antenna is disposed on the first circuit board section. The second antenna is disposed on the second circuit board section. A wireless signal generated by the first antenna is transmitted through the high-pass portion, the connection portion, and the low-pass portion of the waveguide filter, and then is received by the second antenna.

The present disclosure provides an antenna. The antenna includes: a main body structure having a first surface, wherein the main body structure is formed by placing a reflective metal plate in a mold and performing injection molding, and the main body structure is of an integrally formed structure; a radiation layer, wherein the radiation layer is electroplated on the first surface; and a power distribution layer, wherein the power distribution layer is electroplated on the first surface, the power distribution layer is electrically connected to the radiation layer, and the power distribution layer feeds the radiation layer.

An impedance matching film 10 includes a mixture containing indium oxide and tin oxide and being a main component of the impedance matching film, the mixture having an amorphous structure. The impedance matching film 10 for impedance matching has a Hall mobility of 5 cm.sup.2/(V.Math.s) or more. The impedance matching film 10 has a thickness of 16 nm or more and less than 100 nm.

An antenna arrangement having a stacked layered structure. The antenna arrangement includes a radiation layer including one or more radiation elements, and a distribution layer facing the radiation layer. The distribution layer is arranged to distribute a radio frequency signal to the one or more radiation elements. The distribution layer includes at least one distribution layer feed. Any of the distribution layer and the radiation layer includes a first electromagnetic bandgap, EBG, structure arranged to form at least one first waveguide intermediate the distribution layer and the radiation layer. The first EBG structure is arranged to prevent electromagnetic radiation in a frequency band of operation from propagating from the first waveguide in directions other than through the distribution layer feed and the one or more radiation elements. The radiation layer and the distribution layer are attached to each other with one or more fastening members including respective deformable tails.

An antenna arrangement having a stacked layered structure. The antenna arrangement includes a radiation layer including one or more radiation elements, and a distribution layer facing the radiation layer. The distribution layer is arranged to distribute a radio frequency signal to the one or more radiation elements. The distribution layer includes at least one distribution layer feed and a first electromagnetic bandgap, EBG, structure arranged to form at least one first waveguide intermediate the distribution layer and the radiation layer. The first EBG structure is also arranged to prevent electromagnetic propagation in a frequency band of operation from propagating from the at least one first waveguide in directions other than through the at least one distribution layer feed and the one or more radiation elements. The distribution layer includes a plurality of distribution modules and a positioning structure, the positioning structure is arranged to fix the distribution modules in position.

Various embodiments may relate to an antenna. The antenna may include a ridge reflector arranged along a plane. The ridge reflector may be configured to enhance an emission of at least one electromagnetic wave source providing an electromagnetic wave signal to the antenna and further configured to direct the electromagnetic wave signal in a direction at least substantially perpendicular to the plane. The ridge reflector may define a space along the plane for allowing the electromagnetic wave signal to be directed in the direction at least substantially perpendicular to the plane. The ridge reflector may include at least one of a dielectric material and a semiconductor material.

An antenna module installation system comprising a baseplate and a carrier chassis. The baseplate is configured to couple to an antenna dish assembly, and comprises an antenna module mounting apparatus including an alignment portion and a retention portion. The carrier chassis is configured to retain an antenna module, such as antenna hub amplifier, and comprises an engaging apparatus. The carrier chassis is configured to allow multiple manufacturers versions of a component to be used through adapter components. The engaging apparatus is configured to engage with the alignment portion, which positions the carrier chassis in a mounting alignment, and to move from the alignment portion to the retention portion which retains the carrier chassis in engagement with the baseplate. The engaging apparatus is designed to allow that direct connections to the component in the carrier chassis are disconnected prior to its removal.

A reflector for deflecting electromagnetic waves is provided. Said reflector comprises a resistive material along its edges in a specific pattern, wherein the resistive material has a resistance per square meter being higher than the resistance per square meter of the material of the reflector in order to attenuate and/or absorb electromagnetic energy of the electromagnetic waves.

An assembly that includes a printed circuit board having an air gap, and a method of fabricating the assembly is disclosed. The assembly includes at least one air gap. This air gap is created by using a soluble material during the PCB assembly process. The soluble material can preferably be processed in accordance with traditional PCB fabrication processes. For example, other materials can be bonded to the soluble material. Additionally, the soluble material is capable of withstanding a drilling process. After the PCB assembly is complete, the soluble material is then dissolved, leaving an air gap where the soluble material once existed. This assembly may be useful in configurations where an antenna, EBG material or other electronic structure is to be disposed above the top surface of the printed circuit board.

An antenna according to an embodiment of the present invention includes a primary radiator and a reflector mirror. The primary radiator radiates radio waves. The reflector mirror reflects radio waves radiated from the primary radiator, has same aperture diameter and height as a parabolic reflector mirror whose aperture diameter is equal to or less than 1.7 times a wavelength of the radio waves, and has a non-parabolic surface as a mirror surface shape.