Same-Aperture Any-Frequency Simultaneous Transmit and Receive Communication System
0 Assignments
0 Petitions
Accused Products
Abstract
A same-aperture any-frequency simultaneously transmit and receive (STAR) system includes a signal connector having a first port electrically coupled to an antenna, a second port electrically coupled to a transmit signal path, and a third port electrically coupled to receive signal path. The signal connector passes a transmit signal in the transmit signal path to the antenna and a receive signal in the receive signal path. A signal isolator is positioned in the transmit signal path to remove a residual portion of the receive signal from transmit signal path. An output of the signal isolator provides a portion of the transmit signal with the residual portion of the receive signal removed. A signal differencing device having a first input electrically coupled to the output of the signal isolator and a second input electrically coupled to the third port of the signal connector subtracts a portion of the transmit signal in the receive signal path thereby providing a more accurate receive signal.
-
Citations
83 Claims
-
1-61. -61. (canceled)
-
62. An any-RF-frequency simultaneously transmit and receive (STAR) system, the STAR system comprising:
-
a) an array of radiating elements; b) an any-RF-frequency signal connector having a first port coupled to the array of radiating elements, a second port electrically coupled to a transmit signal path such that the array of radiating elements are configured to be fed an any-RF-frequency transmit signal having an unspecified RF transmit frequency, and a third port electrically coupled to a receive signal path such that the array of radiating elements provide an any-RF-frequency receive signal having an unspecified RF receive frequency to the receive signal path, the any-RF-frequency signal connector passing the any-RF-frequency transmit signal having the unspecified RF transmit frequency in the transmit signal path to the first port and passing the any-RF-frequency receive signal having the unspecified RF receive frequency in the receive signal path; c) a signal differencing device having a first input electrically coupled to the transmit signal path and a second input electrically coupled to the third port of the any-RF-frequency signal connector, the signal differencing device subtracting a portion of the any-RF-frequency transmit signal having the unspecified RF transmit frequency in the receive signal path, thereby providing a copy of the any-RF-frequency receive signal having the unspecified RF transmit frequency at an output of the signal differencing device; and d) a signal processor having a first input electrically coupled to the output of the signal differencing device and a second input electrically coupled to the transmit signal path, the signal processor processing a copy of the any-RF-frequency transmit signal having the unspecified RF transmit frequency so as to reduce a residual any frequency transmit signal in the receive signal path. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71)
-
-
72. An any-RF-frequency simultaneously transmit and receive (STAR) system, the STAR system comprising:
-
a) a first and second radiating element; b) a first transmit signal path and a first receive signal path electrically coupled to the first radiating element, the first transmit signal path configured to pass a first any-RF-frequency transmit signal having an unspecified RF transmit frequency to the first radiating element and the first receive signal path configured to pass an any-RF-frequency receive signal having an unspecified RF receive frequency from the first radiating element; c) a second transmit signal path electrically coupled to the second radiating element, the second transmit signal path configured to pass a second any-RF-frequency transmit signal having an unspecified RF transmit frequency to the second radiating element; b) a signal differencing device having a first input electrically coupled to the first transmit signal path and a second input electrically coupled to the first receive signal path, the first signal differencing device subtracting a portion of the first any-RF-frequency transmit signal having the unspecified RF transmit frequency in the first receive signal path, thereby providing a copy of the any-RF-frequency receive signal having the unspecified RF transmit frequency at an output of the signal differencing device; and c) a signal processor having a first input electrically coupled to the output of the signal differencing device, a second input electrically coupled to the first transmit signal path and a third input electrically coupled to the second transmit signal path, the signal processor processing a copy of the first and second any-RF-frequency transmit signal having the unspecified RF transmit frequency so as to reduce a residual any-frequency transmit signal transmitted by the first and second radiating element in the first receive signal path. - View Dependent Claims (73, 74, 75, 76, 77, 78)
-
-
79. A method of any-RF-frequency simultaneously transmitting and receiving, the method comprising:
-
a) connecting an any-RF-frequency receive signal comprising an unspecified RF receive frequency from a port with an any-RF-frequency transmit signal comprising an unspecified RF transmit frequency from a transmit signal path so that the any-RF-frequency receive signal is passed to a receive signal path and the any-RF-frequency transmit signal is passed to the port; b) performing a subtraction of the any-RF-frequency transmit signal in the transmit signal path from the any-RF-frequency receive signal in the receive signal path, thereby removing a residual portion of the any-RF-frequency transmit signal from the receive signal path making a more accurate representation of the any-RF-frequency receive signal; and c) processing the more accurate representation of the any-RF-frequency receive signal so as to reduce a residual any-RF-frequency transmit signal in the any-RF-frequency receive signal path. - View Dependent Claims (80, 81, 82, 83)
-
Specification