US 6,983,129 B2
Radio frequency switch and wireless communication apparatus using the same
Yuki Satoh, Osaka (Japan); and Tsutomu Sakai, Gifu (Japan)
Assigned to Matsushita Electric Industrial Co., Ltd., Osaka (Japan)
Filed on Aug. 02, 2001, as Appl. No. 9/920,330.
Claims priority of application No. 2000-237029 (JP), filed on Aug. 04, 2000.
Prior Publication US 2002/0025785 A1, Feb. 28, 2002
Int. Cl. H01P 1/10 (2006.01); H04B 1/44 (2006.01)
U.S. Cl. 455—82 9 Claims
OG exemplary drawing
 
1. A radio frequency switch comprising:
a first diode connected between a transmission terminal and an antenna terminal;
a low pass filter connected between said first diode and said antenna terminal, said low pass filter and said first diode being disposed in series;
a high pass filter connected between said low pass filter side of said first diode and a reception terminal; and
a second diode having one end grounded and other end connected between said reception terminal and said high pass filter.