A wave guide for an array antenna, can include: a mounting portion configured to receive a plurality of radar antennas of the array antenna, the mounting portion comprising a respective receiving position for each radar antenna of the array antenna; a set of elongate members spaced from the mounting portion, each elongate member including a series of apertures arranged along the elongate member, wherein each elongate member extends orthogonally to an adjacent elongate member of the set; and a plurality of guide channels, each guide channel extending between a respective one or more receiving positions of the mounting portion and a respective one or more apertures of the elongate members to connect, in use, one or more of the radar antennas to one or more of the apertures.

A wave guide for an array antenna, can include: a mounting portion configured to receive a plurality of radar antennas of the array antenna, the mounting portion comprising a respective receiving position for each radar antenna of the array antenna; a set of elongate members spaced from the mounting portion, each elongate member including a series of apertures arranged along the elongate member, wherein each elongate member extends orthogonally to an adjacent elongate member of the set; and a plurality of guide channels, each guide channel extending between a respective one or more receiving positions of the mounting portion and a respective one or more apertures of the elongate members to connect, in use, one or more of the radar antennas to one or more of the apertures.

Apparatus and methods for antenna arrays with staggered rows of antennas for dual frequency operation are provided. In certain embodiments, a radio frequency module includes an antenna array attached to a module substrate and that includes a plurality of antenna elements having a first row of antenna elements and a second row of antenna elements that are staggered. The radio frequency module further includes a semiconductor die attached to the module substrate and including a plurality of radio frequency signal conditioning circuits, a plurality of switches coupled between the plurality of radio frequency signal conditioning circuits and the antenna array, and a control circuit configured to control a selection of the plurality of antenna elements by the plurality of switches.

Apparatus and methods for antenna arrays with staggered rows of antennas for dual frequency operation are provided. In certain embodiments, a radio frequency module includes an antenna array attached to a module substrate and that includes a plurality of antenna elements having a first row of antenna elements and a second row of antenna elements that are staggered. The radio frequency module further includes a semiconductor die attached to the module substrate and including a plurality of radio frequency signal conditioning circuits, a plurality of switches coupled between the plurality of radio frequency signal conditioning circuits and the antenna array, and a control circuit configured to control a selection of the plurality of antenna elements by the plurality of switches.

An antenna device includes a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, and a receiving antenna including reception channels. An interval between the transmitting antenna and the transmitting antenna is wider than an overall width of the receiving antenna. An interval between the transmitting antenna and the transmitting antenna is narrower than an interval between adjacent channels among the reception channels.

An antenna device includes a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, a transmitting antenna including a transmission channel, and a receiving antenna including reception channels. An interval between the transmitting antenna and the transmitting antenna is wider than an overall width of the receiving antenna. An interval between the transmitting antenna and the transmitting antenna is narrower than an interval between adjacent channels among the reception channels.

One or more input signals are used to generate a Pseudo noise generator and re-inject the signal to obtain a more efficient method of control of a receiver using adaptive antenna array technology. The antenna array automatically adjusts its direction to the optimum using information obtained from the input signal by the receiving antenna elements. The input signals may be stored in memory for retrieval, comparison and then used to optimize reception. The difference between the outputs of the memorized signals and the reference signal is used as an error signal. One or multiple Modal antennas, where the Modal antenna is capable of generating several unique radiation patterns, can implement this optimization technique in a MIMO configuration.

One or more input signals are used to generate a Pseudo noise generator and re-inject the signal to obtain a more efficient method of control of a receiver using adaptive antenna array technology. The antenna array automatically adjusts its direction to the optimum using information obtained from the input signal by the receiving antenna elements. The input signals may be stored in memory for retrieval, comparison and then used to optimize reception. The difference between the outputs of the memorized signals and the reference signal is used as an error signal. One or multiple Modal antennas, where the Modal antenna is capable of generating several unique radiation patterns, can implement this optimization technique in a MIMO configuration.

The present invention relates to an antenna system including at least two antenna modules operable for transmitting and/or receiving radiation in certain common frequency band. The at least two antenna modules are collinearly arranged along a common axis so as to provide low gain along the axis, and are spaced apart from one another along this axis by a distance of at least a few nominal wavelengths of the common frequency band. Each two locally adjacent antenna modules of the at least two antenna modules operate with substantially mutually orthogonal polarizations of radiation, thereby suppressing electromagnetic coupling between the antenna modules in the common frequency band.

One or more input signals are used to generate a Pseudo noise generator and re-inject the signal to obtain a more efficient method of control of a receiver using adaptive antenna array technology. The antenna array automatically adjusts its direction to the optimum using information obtained from the input signal by the receiving antenna elements. The input signals may be stored in memory for retrieval, comparison and then used to optimize reception. The difference between the outputs of the memorized signals and the reference signal is used as an error signal. One or multiple Modal antennas, where the Modal antenna is capable of generating several unique radiation patterns, can implement this optimization technique in a MIMO configuration.