High-frequency device and communication apparatus

Details High-frequency device and communication apparatus High-frequency device and communication apparatus

2005-04-19

2005-04-19

Callahan, Timothy P. (Department: 2816)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S195000, C333S133000

Reexamination Certificate

active

06882250

ABSTRACT:
Interdigital transducers (IDT electrodes), reflectors, etc., are formed on a piezoelectric substrate. An unbalanced input/output terminal is connected to a first input/output terminal. A first inductor is connected between a first terminal, which is one of the balanced input/output terminals, and a second terminal, which is the other of the balanced input/output terminals. Further, a second inductor is connected between the first terminal in the balanced input/output terminals and a second input/output terminal, and the second terminal in the balanced input/output terminals is connected to a third input/output terminal.

REFERENCES:
patent: 5521554 (1996-05-01), Okazaki
patent: 5568002 (1996-10-01), Kawakatsu et al.
patent: 5757248 (1998-05-01), Bardal
patent: 5994980 (1999-11-01), Tada
patent: 6424239 (2002-07-01), Ehara et al.
patent: 6437478 (2002-08-01), Yamamo To
patent: 6498548 (2002-12-01), Kaneda et al.
patent: 6531933 (2003-03-01), Miyamoto et al.
patent: 6606016 (2003-08-01), Takamine
patent: 6713940 (2004-03-01), Takamine
patent: 6714099 (2004-03-01), Hikita et al.
patent: 20010043024 (2001-11-01), Takamine et al.
patent: 6-204781 (1994-07-01), None

Affiliated with

Also associated with

Rating

High-frequency device and communication apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-frequency device and communication apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-frequency device and communication apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3398013