Patent · US Active

VSWR tolerant tunable hybrid duplexer

US9196945B2 · kind B2 · utility

3Cited by

7References

22Claims

0Family size

Assignee

RF Micro Devices, Inc. · US

Inventors

Nadim Khlat · Cugnaux, FR
Marcus Granger-Jones · Scotts Valley, US
Ruediger Bauder · Feldkirchen-Westerham, DE

Key dates

Filing date	May 29, 2013
Grant date	Nov 24, 2015
Priority date	—
Expiry date	Dec 26, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/0057
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The disclosure describes a dual hybrid duplexer including two hybrid couplers, two intra-filters, a tunable isolation load, and a phase shifter. The phase shifter may be located at the isolation port. The phase shifter may be located at the antenna port. In one embodiment, a dual hybrid duplexer includes two hybrid couplers, two intra-filters, a tunable isolation load, a first phase shifter located at the isolation port, and a second phase shifter located at the antenna port. The first and second phase shifters have a difference of 90 degrees (plus or minus 10 degrees).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.