The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 20, 2021

Filed:

Jul. 16, 2019
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Herschel A. Ainspan, New Hempstead, NY (US);

Mark Ferriss, Tarrytown, NY (US);

Arun S. Natarajan, White Plains, NY (US);

Benjamin D. Parker, Peekskill, NY (US);

Jean-Oliver Plouchart, New York, NY (US);

Scott K. Reynolds, Amawalk, NY (US);

Mihai A. Sanduleanu, Yorktown Heights, NY (US);

Alberto Valdes Garcia, Hartsdale, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/02 (2006.01); H04B 1/48 (2006.01); H01Q 3/36 (2006.01); H01Q 3/28 (2006.01);
U.S. Cl.
CPC ...
G01S 7/024 (2013.01); H01Q 3/28 (2013.01); H01Q 3/36 (2013.01); H04B 1/48 (2013.01);
Abstract

Polarimetric transceiver front-ends and polarimetric phased array transceivers include two receive paths configured to receive signals from an antenna, each including a respective variable phase shifter. A first transmit path is connected to the variable phase shifter of one of the two receive paths and is configured to send signals to the antenna. A transmit/receive switch is configured to select between the first transmit path and the two receive paths for signals. The transmit/receive switch has an element that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.


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