Title:
REDUCING COUPLING COEFFICIENT VARIATION IN COUPLERS
Document Type and Number:
WIPO Patent Application WO/2012/016087
Kind Code:
A3
Abstract:
A number of couplers are presented that have high-directivity and low coupling coefficient variation. One such coupler includes a first trace associated with a first port and a second port. The first trace includes a first main arm, a first connecting trace connecting the first main arm to the second port, and a non-zero angle between the first main arm and the first connecting trace. Further, the coupler includes a second trace associated with a third port and a fourth port. The second trace includes a second main arm. Another such coupler includes a first trace with a first edge substantially parallel to a second edge and substantially equal in length to the second edge. The first trace includes a third edge substantially parallel to a fourth edge. The fourth edge is divided into three segments. The outer segments are a first distance from the third edge. The middle segment is a second distance from the third edge. Further, the coupler includes a second trace, which includes a first edge substantially parallel to a second edge and substantially equal in length to the second edge. The second trace includes a third edge substantially parallel to a fourth edge. The fourth edge is divided into three segments. The outer segments are a first distance from the third edge. The middle segment is a second distance from the third edge. Another such coupler includes a first trace associated with a first port and a second port. The first port is configured substantially as an input port and the second port is configured substantially as an output port. The coupler further includes a second trace associated with a third port and a fourth port. The third port is configured substantially as a coupled port and the fourth port is configured substantially as an isolated port. In addition, the coupler includes a first capacitor configured to introduce a discontinuity to induce a mismatch in the coupler.
Inventors:
LI YANG (US)
ZHU XUANANG (US)
HOANG DINHPHUOC V (US)
ZHANG GUOHAO (US)
REISNER RUSS (US)
PRIKHODKO DMITRI (US)
GUO JIUNN-SHENG (US)
SCOLES BRADLEY D
VIVEIROS DAVID
ZHU XUANANG (US)
HOANG DINHPHUOC V (US)
ZHANG GUOHAO (US)
REISNER RUSS (US)
PRIKHODKO DMITRI (US)
GUO JIUNN-SHENG (US)
SCOLES BRADLEY D
VIVEIROS DAVID
Application Number:
PCT/US2011/045799
Publication Date:
April 19, 2012
Filing Date:
July 28, 2011
Export Citation:
Assignee:
SKYWORKS SOLUTIONS INC (US)
LI YANG (US)
ZHU XUANANG (US)
HOANG DINHPHUOC V (US)
ZHANG GUOHAO (US)
REISNER RUSS (US)
PRIKHODKO DMITRI (US)
GUO JIUNN-SHENG (US)
SCOLES BRADLEY D
VIVEIROS DAVID
LI YANG (US)
ZHU XUANANG (US)
HOANG DINHPHUOC V (US)
ZHANG GUOHAO (US)
REISNER RUSS (US)
PRIKHODKO DMITRI (US)
GUO JIUNN-SHENG (US)
SCOLES BRADLEY D
VIVEIROS DAVID
International Classes:
H01P5/04; H01P5/08; H01P5/12
Foreign References:
| US20050225411A1 | 2005-10-13 | |||
| US20080100404A1 | 2008-05-01 | |||
| US20020057136A1 | 2002-05-16 |
Attorney, Agent or Firm:
CHRISTENSEN, Michael, R. (LLP2040 Main Street,Fourteenth Floo, Irvine CA, US)
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