Dielectric loaded cavity filters for non-actively cooled...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S011100, C455S422100, C455S561000

Reexamination Certificate

active

07457640

ABSTRACT:
A dielectric-based RF device such as a tower mounted amplifier (TMA), mast-head amplifier (MHA), or Tower Mounted Boosters (TMB) includes a housing having a plurality of cavities and an input and an output, the input being coupled to the antenna and the output being coupled to a base station. The housing includes a transmission path with a transmit filter. The housing further includes a receive path with at least one receive filter and a low noise amplifier. The receive filter includes a plurality of cavities with a dielectric-based resonator disposed in at least some of the plurality of cavities. In one aspect, the RF device has a volume of less than about 155 in3. The RF device including the dielectric-based resonators has excellent out-of-band signal rejection with low loss. In addition, the RF device described herein is small enough to mount close to the antenna. The dielectric-based RF device has superior performance characteristics and a smaller footprint than conventional air cavity-based TMAs.

REFERENCES:
patent: 4453146 (1984-06-01), Fiedziuszko
patent: 4489293 (1984-12-01), Fiedziuszko
patent: 4652843 (1987-03-01), Tang et al.
patent: 5220300 (1993-06-01), Snyder
patent: 5268659 (1993-12-01), Zaki et al.
patent: 5604925 (1997-02-01), O'Malley et al.
patent: 5841330 (1998-11-01), Wenzel et al.
patent: 5949309 (1999-09-01), Correa
patent: 6094113 (2000-07-01), Wenzel et al.
patent: 6211752 (2001-04-01), Gendraud et al.
patent: 6212404 (2001-04-01), Hershtig
patent: 6239673 (2001-05-01), Wenzel et al.
patent: 6262639 (2001-07-01), Shu et al.
patent: 6263215 (2001-07-01), Patton et al.
patent: 6542049 (2003-04-01), Henningsson et al.
patent: 6650208 (2003-11-01), Karhu
patent: 6686811 (2004-02-01), Hey-Shipton
patent: 6946933 (2005-09-01), Accatino et al.
patent: 2004/0108629 (2004-06-01), Imanaka et al.
patent: 2004/0135654 (2004-07-01), Karhu
patent: 2005/0030130 (2005-02-01), Alford
patent: 2005/0164888 (2005-07-01), Hey-Shipton
Brochure, KMW, p. 21 (2004).
PCT International Preliminary Report for PCT/US2005/039013, Applicant: Antone Wireless Corporation, Form PCT/IB/326, dated May 10, 2007 (9 pages).

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