Duplexer and method of isolating an Rx-band and a Tx-band

Details Duplexer and method of isolating an Rx-band and a Tx-band Duplexer and method of isolating an Rx-band and a Tx-band

2007-06-12

2007-06-12

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S132000

Reexamination Certificate

active

10535055

ABSTRACT:
A duplexer (1) with two band-pass filters (5, 6) comprising film bulk acoustic wave resonators (FBAR) (8, 9, 10, 11, 12, 13) has an extra antiresonant circuit in order to block the transmission signal. It has an extra resonant circuit in order to allow the desired receive signal to pass. The antiresonant circuit comprises the first FBAR (11) and a parallel inductor (14). The resonant circuit comprises the first FBAR (11) and a series inductor (7).

REFERENCES:
patent: 1795204 (1931-03-01), Espenschied
patent: 3293644 (1966-12-01), Loos et al.
patent: 5789845 (1998-08-01), Wadaka et al.
patent: 6081171 (2000-06-01), Ella
patent: 6201457 (2001-03-01), Hickernell
patent: 6262637 (2001-07-01), Bradley et al.
patent: 1058383 (0000-12-01), None
patent: 0962999 (1999-12-01), None
patent: 1 126 604 (2001-08-01), None

Affiliated with

Also associated with

Rating

Duplexer and method of isolating an Rx-band and a Tx-band does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Duplexer and method of isolating an Rx-band and a Tx-band, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duplexer and method of isolating an Rx-band and a Tx-band will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3869540