Same-aperture any-frequency simultaneous transmit and receive communication system
First Claim
1. A same-aperture any-RF-frequency simultaneously transmit and receive (STAR) system, the STAR system comprising:
- a) an any-RF-frequency signal connector having a first port, a second port electrically coupled to a transmit signal path, and a third port electrically coupled to a receive signal path, the signal connector passing an any-RF-frequency transmit signal having an unspecified RF transmit frequency in the transmit signal path to the first port and passing an any-RF-frequency receive signal having an unspecified RF receive frequency in the receive signal path;
b) an analog 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 analog 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 analog signal differencing device; and
c) an adaptive signal processor having a first input electrically coupled to the output of the analog signal differencing device and a second input electrically coupled to the transmit signal path, the adaptive 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.
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
41 Claims
-
1. A same-aperture any-RF-frequency simultaneously transmit and receive (STAR) system, the STAR system comprising:
-
a) an any-RF-frequency signal connector having a first port, a second port electrically coupled to a transmit signal path, and a third port electrically coupled to a receive signal path, the signal connector passing an any-RF-frequency transmit signal having an unspecified RF transmit frequency in the transmit signal path to the first port and passing an any-RF-frequency receive signal having an unspecified RF receive frequency in the receive signal path; b) an analog 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 analog 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 analog signal differencing device; and c) an adaptive signal processor having a first input electrically coupled to the output of the analog signal differencing device and a second input electrically coupled to the transmit signal path, the adaptive 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 (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A method of same-aperture 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 an analog 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 b) 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 (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. A same-aperture any-RF-frequency simultaneously transmit and receive (STAR) system, the system comprising:
-
a) means for connecting an any-RF-frequency receive signal comprising an unspecified RF frequency with an any-RF-frequency transmit signal comprising an unspecified RF transmit frequency so that the any-RF-frequency receive signal is passed to a receive signal path and the any-RF-frequency transmit signal is passed from a transmit signal path to a port; b) means for performing analog subtraction of the any-RF-frequency transmit signal from the any frequency receive signal in the receive signal path, thereby removing a residual portion of the any-RF-frequency transmitted signal from the receive signal path making a more accurate representation of the any-RF-frequency receive signal; and d) means for processing the more accurate representation of the any-RF-frequency receive signal so as to reduce a residual transmit signal in the receive signal path. - View Dependent Claims (40)
-
-
41. A same-aperture any-RF-frequency simultaneously transmit and receive (STAR) system, the STAR system comprising:
-
a) an any-RF-frequency signal connector having a first port, a second port electrically coupled to a transmit signal path, and a third port electrically coupled to a receive signal path, the signal connector passing an any frequency transmit signal in the transmit signal path to the first port and passing an any-RF-frequency receive signal in the receive signal path; b) an analog signal differencing device having a first input electrically coupled to transmit signal path and a second input electrically coupled to the third port of the any-RF-frequency signal connector, the analog signal differencing device subtracting a portion of the any-RF-frequency transmit signal in the receive signal path, thereby providing a copy of the any-RF-frequency receive signal at an output of the analog signal differencing device; and a) an adaptive signal processor having a first input electrically coupled to the output of the analog signal differencing device and a second input electrically coupled to the transmit signal path, the adaptive signal processor processing a copy of the any-RF-frequency transmit signal so as to reduce a residual any frequency transmit signal in the receive signal path.
-
Specification