Abstract: A system and method for an antenna including two or more radiation elements on a side of a substrate; a ground plane on an opposite side of the substrate; and a feeding network including a plurality of branch feeding elements. Each of the radiation elements has one or more feeding ports such that each of the plurality of branch feeding element is connected to a feeding port of a respective one of the radiation elements.

Abstract: A system and method for an antenna including two or more radiation elements on a side of a substrate; a ground plane on an opposite side of the substrate; and a feeding network including a plurality of branch feeding elements. Each of the radiation elements has one or more feeding ports such that each of the plurality of branch feeding element is connected to a feeding port of a respective one of the radiation elements.

Abstract: An aperture coupled, single fed, microstrip line feed for a circularly polarized patch antenna is provided that can transmit transmissions with a low profile, wide impedance, and axial ratio bandwidths. The circularly polarized patch antenna includes a double sided printed circuit board with a non-linear slots etched into a ground plane of one side of the printed circuit board, with a printed microstrip line printed on the opposite side of the printed circuit board. The microstrip line can be hook shaped and intersect each of the slots. The non linear slots can be radially arranged around a locus or area on the circuit board.

Abstract: A dual polarized high gain and wideband complementary antenna is presented herein. A dual polarized antenna can include a ground plane, a folded dipole portion electrically coupled to the ground plane, a shorted patch antenna portion including an open end that is electrically coupled to the folded dipole portion, and a metal plate located at a bottom portion of the dual polarized antenna. In one example, the folded dipole portion can include four folded dipoles. Further, the open end of the shorted patch antenna portion can be electrically coupled to the folded dipole portion using the metal plate. Further, the dual polarized antenna can include two ports—each port including a pair of feeding sources, and each feeding source configured to generate an electric dipole and a magnetic dipole. In another example, magnitudes of the electric dipoles can be equivalent, and magnitudes of the magnetic dipoles can be equivalent.

Abstract: An aperture coupled, single fed, microstrip line feed for a circularly polarized patch antenna is provided that can transmit transmissions with a low profile, wide impedance, and axial ratio bandwidths. The circularly polarized patch antenna includes a double sided printed circuit board with a non-linear slots etched into a ground plane of one side of the printed circuit board, with a printed microstrip line printed on the opposite side of the printed circuit board. The microstrip line can be hook shaped and intersect each of the slots. The non linear slots can be radially arranged around a locus or area on the circuit board.

Abstract: Described herein are shorted bowtie patch antennas. The shorted bowtie patch antenna includes parasitic shorted patches. Signals are received by the shorted bowtie patch antenna. The received signals are propagated to a receiver. Signals sent from a transmitter are transmitted by the shorted bowtie patch antenna. Current is induced in the parasitic shorted patches during receiving and transmitting of signals.

Abstract: An aperture coupled, single fed, microstrip line feed for a circularly polarized patch antenna is provided that can transmit transmissions with a low profile, wide impedance, and axial ratio bandwidths. The circularly polarized patch antenna includes a double sided printed circuit board with a non-linear slots etched into a ground plane of one side of the printed circuit board, with a printed microstrip line printed on the opposite side of the printed circuit board. The microstrip line can be hook shaped and intersect each of the slots. The non linear slots can be radially arranged around a locus or area on the circuit board. A metal patch can placed above the ground plane and electromagnetic waves emanating from the microstrip line can couple to the patch through the non-linear strips and excite the patch such that it radiates an electromagnetic transmission.

Abstract: A dual polarized high gain and wideband complementary antenna is presented herein. A dual polarized antenna can include a ground plane, a folded dipole portion electrically coupled to the ground plane, a shorted patch antenna portion including an open end that is electrically coupled to the folded dipole portion, and a metal plate located at a bottom portion of the dual polarized antenna. In one example, the folded dipole portion can include four folded dipoles. Further, the open end of the shorted patch antenna portion can be electrically coupled to the folded dipole portion using the metal plate. Further, the dual polarized antenna can include two ports—each port including a pair of feeding sources, and each feeding source configured to generate an electric dipole and a magnetic dipole. In another example, magnitudes of the electric dipoles can be equivalent, and magnitudes of the magnetic dipoles can be equivalent.

Abstract: An aperture coupled, single fed, microstrip line feed for a circularly polarized patch antenna is provided that can transmit transmissions with a low profile, wide impedance, and axial ratio bandwidths. The circularly polarized patch antenna includes a double sided printed circuit board with a non-linear slots etched into a ground plane of one side of the printed circuit board, with a printed microstrip line printed on the opposite side of the printed circuit board. The microstrip line can be hook shaped and intersect each of the slots. The non linear slots can be radially arranged around a locus or area on the circuit board.

Abstract: Described herein are shorted bowtie patch antennas. The shorted bowtie patch antenna includes parasitic shorted patches. Signals are received by the shorted bowtie patch antenna. The received signals are propagated to a receiver. Signals sent from a transmitter are transmitted by the shorted bowtie patch antenna. Current is induced in the parasitic shorted patches during receiving and transmitting of signals.

Abstract: An antenna is disclosed as including at least one dipole connected with at least one shorted patch antenna, and at least two feeding sources.

Abstract: Systems and methods which utilize a symmetrical partially coupled microstrip slot feed patch antenna element configuration to provide highly decoupled dual-polarized wideband patch antenna elements are shown. Embodiments provide a microstrip slot feed configuration in which a slot of a first signal feed is centered with respect to the patch and further provide a microstrip slot feed configuration in which slots of a second signal feed are symmetrically disposed with respect to the center of the patch and at positions near the edges of the patch. The microstrip feed utilized in communicating signals with respect to the slots of the second signal feed is adapted to provide signals of substantially equal amplitude and 180° out of phase with respect to each other according to embodiments. The second signal feed configuration utilized according to embodiments provides partial coupling between the patch and the second signal feed.

Abstract: Systems and methods which utilizes a stub array microstrip line for providing a phase shifter configuration are shown. A stub array microstrip line phase shifter of embodiments may comprises a microstrip line structure, an isolation structure, and a phase tuning structure cooperative to provide phase shifting of signals passed through the microstrip line structure. A microstrip line structure comprises a stub array microstrip line having a plurality of microstrip stubs provided in association with a slotted ground plane having a plurality of slots. The stub array microstrip line is adapted to provide compensation for capacitance and/or inductance associated with the slots of the slotted ground plane. A phase tuning structure provides coupling of signals transmitted by the stub array microstrip line to the slots of the slotted ground plane for signal phase shifting.

Abstract: An antenna is disclosed as including at least one dipole connected with at least one shorted patch antenna, and at least two feeding sources.

Abstract: An antenna system comprises a ground plane, a flexible substrate, a first antenna element disposed upon the flexible substrate and proximal to the ground plane, the flexible substrate configured so as to be at least partially rolled, and a Radio Frequency (RF) module in communication with the first antenna element and transmitting and receiving radio waves through the first antenna element.

Abstract: Systems and methods which utilize a symmetrical partially coupled microstrip slot feed patch antenna element configuration to provide highly decoupled dual-polarized wideband patch antenna elements are shown. Embodiments provide a microstrip slot feed configuration in which a slot of a first signal feed is centered with respect to the patch and further provide a microstrip slot feed configuration in which slots of a second signal feed are symmetrically disposed with respect to the center of the patch and at positions near the edges of the patch. The microstrip feed utilized in communicating signals with respect to the slots of the second signal feed is adapted to provide signals of substantially equal amplitude and 180° out of phase with respect to each other according to embodiments. The second signal feed configuration utilized according to embodiments provides partial coupling between the patch and the second signal feed.

Abstract: A near field apparatus comprises a Radio Frequency (RF) coil including at least one of a shorting bridge from a first point to a second point along an electrical path of the RF coil and/or a discontinuity in the electrical path of the RF coil.

Abstract: An antenna system comprising a ground plane, an antenna element folded under itself and operable to transmit and receive circularly polarized signals, an air filled cavity disposed between the ground plane and the antenna element, and a radio frequency module in communication with the antenna element.

Abstract: An antenna system comprises a ground plane, a flexible substrate, a first antenna element disposed upon the flexible substrate and proximal to the ground plane, the flexible substrate configured so as to be at least partially rolled, and a Radio Frequency (RF) module in communication with the first antenna element and transmitting and receiving radio waves through the first antenna element.

Abstract: A near field apparatus comprises a Radio Frequency (RF) coil including at least one of a shorting bridge from a first point to a second point along an electrical path of the RF coil and/or a discontinuity in the electrical path of the RF coil.