Janice A Allen

US Patent:

20070052492, Mar 8, 2007

Filed:

Sep 8, 2005

Appl. No.:

11/222254

Inventors:

Dahweih Duan - Torrance CA, US
Alex Chau - Rancho Palos Verdes CA, US
Barry Allen - Rancho Palos Verdes CA, US
Janice Allen - Rancho Palos Verdes CA, US
David Brunone - Rancho Palos Verdes CA, US

International Classification:

H01P 5/02

US Classification:

333033000

Abstract:

An apparatus in one example has: a substrate having a microstrip line; a capacitor at a predetermined location along the microstrip line, the capacitor producing a discontinuity; and a ground plane assembly on the substrate, the ground plane assembly having an opening that compensates for the discontinuity of the capacitor.

US Patent:

20070247231, Oct 25, 2007

Filed:

Apr 19, 2006

Appl. No.:

11/406777

Inventors:

Barry Allen - Rancho Palos Verdes CA, US
Janice Allen - Rancho Palos Verdes CA, US
David Brunone - Rancho Palos Verdes CA, US
Alex Chau - Rancho Palos Verdes CA, US

International Classification:

H03F 3/04

US Classification:

330296000

Abstract:

Systems are disclosed for providing a DC-bias network for a RF distributed amplifier. One embodiment may include a DC-bias network comprising a planar substrate having an input port configured to receive a DC input signal and provide a DC bias at an output port, a microstrip line mounted to the planar substrate and interconnecting the input port and the output port, and a plurality of RF resonators coupled to the microstrip line. Each of the plurality of RF resonators are configured to provide a substantially constant impedance for a respective portion of the frequency band of the RF signal