Band reject filters

Details Band reject filters Band reject filters

2005-08-02

2005-08-02

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S189000, C333S193000, C330S306000

Reexamination Certificate

active

06924715

ABSTRACT:
Acoustic resonators such as surface acoustic wave (SAW) devices and thin film bulk acoustic resonators (FBAR) can be configured to produce a band reject filter. Such a filter overcomes the insertion loss and power handling limitations of conventional band pass configurations and as such can be used in power amplifier and duplexer applications.

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“A New Type SPUDT SAW for Use in High Frequency around 2 GHz”; Chun-Yun Jian and Steve Beaudin; 2002 IEEE Ultrasonics Symposium; pp. 279-282, Oct. 2002.
“A New SAW Band Reject Filter and its Applications in Wireless Systems”; Steve Beaudin, Chun-Yun Jian and David Sychaleun; 2002 IEEE Ultrasonics Symposium; pp. 147-151, Oct. 2002.

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