US 2014/0349595 A1Published application

Same-Aperture Any-Frequency Simultaneous Transmit and Receive Communication System

AssigneePhotonic Systems, Inc.

InventorCharles H. Cox

Life of this patent

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Abstract

A simultaneous transmit and receive (STAR) system includes a first bidirectional signal port coupled to an antenna, a second port coupled to a transmit signal path, and a third port coupled to receive signal path. A first switch is electrically connected between the first port and the second port, where a transmit signal propagating in the transmit signal path passes through the first switch when closed and then through the first bidirectional signal port to the antenna where the transmit signal is radiated by the antenna. A second switch is connected between the first port and the third port, where a receive signal is received by the antenna and passes through the bidirectional signal port and then through the second switch when closed to the receive signal path. A controller is electrically connected to a control input of each of the first and second switches.

Claims29

Dependent claims

A simultaneous transmit and receive (STAR) system comprising:

a. a first bidirectional signal 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;
b. a first switch electrically connected between the first bidirectional signal port and the second port electrically coupled to a transmit signal path, wherein a transmit signal propagating in the transmit signal path passes through the first switch when closed and then through the first bidirectional signal port to the antenna where the transmit signal is radiated by the antenna;
c. a second switch electrically connected between the first bidirectional signal port and the third port electrically coupled to a receive signal path, wherein a receive signal is received by the antenna and passes through the bidirectional signal port and then through the second switch when closed to the receive signal path;
and
d. a controller that is electrically connected to a control input of each of the first and second switches, the controller synchronizing operation of the first and second switches for simultaneous transmit and receive, wherein the controller generates a first sampling waveform with a first sampling time that opens the first switch and an inverse first sampling waveform with a first inverse sampling time that closes the second switch to pass the received signal to the receive signal path, and generates a second sampling waveform with a second sampling time that simultaneously closes the first switch and an inverse second sampling waveform with a second inverse sampling time that opens the second switch for a second predetermined time to pass the transmit signal to the antenna.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/455,233Filed 8 Aug 2014
Priority: 30 Jul 2012
Published: 27 Nov 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

H04B 1/0458
Circuits: arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
H04B 1/525
Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of…
H04B
Transmission

Family

Application61/677,366Us provisional application · filed 30 Jul 2012
Application61/755,044Us provisional application · filed 22 Jan 2013
Application13/844,180Continuation in part · filed 15 Mar 2013
Application61/864,538Us provisional application · filed 10 Aug 2013
Application14/455,233Continuation in part
US 2014/0128008 A1Published application
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US 2014/0349595 A1This patent

From the US filing history. Foreign family members aren’t listed.