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. 02, 2025
Filed:
Sep. 30, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Telefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
Transceiver switch circuitry having an antenna port, a receiver port and two transmitter ports. The transceiver switch circuitry is configured to be operable in a reception mode to allow reception signals at the antenna port to be forwarded to the receiver port, and in a transmission mode to allow transmission signals, having a center frequency with a wavelength λ, at the first transmitter port and the second transmitter port to be forwarded to the antenna port for transmission. The transceiver switch circuitry includes a receive arrangement comprising having a receiver λ/4 impedance transformer and a receiver switch circuitry configured to ground the first λ/4 impedance transformer at the receiver port in the transmission mode; and a transmit arrangement having three transmitter impedance transformers and a first and second transmitter switch circuitry configured to virtually ground a second side of the first λ/4 impedance transformer in the reception mode.