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.
Patent No.:
Date of Patent:
Sep. 17, 2019
Filed:
Aug. 27, 2015
International Business Machines Corporation, Armonk, NY (US);
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);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A polarimetric transceiver front-end includes two receive paths configured to receive signals from an antenna, each receive path corresponding to a respective polarization. Each front-end includes a variable amplifier and a variable phase shifter; a first transmit path configured to send signals to the antenna, where the transmit path is connected to the variable phase shifter of one of the two receive paths and includes a variable amplifier; and a transmit/receive switch configured to select between the first transmit path and the two receive paths for signals, where the transmit/receive switch includes a quarter-wavelength transmission line that adds a high impedance to the transmit path when the transmit/receive switch is in a receiving state.