Other

Rockwell Collins, Inc.

Communications Satellite Corporation

Krishna P Pande

Bernard D Geller

Robert M Sorbello

Amin Ezzeddine

Gamal M Hegazi

John V Thommana

Lizy Paul

Tho Vankhanh Nguyen

Eric R Funk

Sunil M Nagabhushana

Guobao Zheng

Ali I Bawangaonwala

Lee Phelps

A multipath enhancer is disclosed ias including more than one antenna. At least one of a receiver and a transmitter is coupled to the more than one antenna. A selectively reflective surface is adjacent the more than one antenna. A controller is configured to alter the reflectivity of the selectively reflective surface.

Multipath manipulator

The complete outdoor radio unit for LMDS is a light weight, compact transceiver featuring planar circuitry. The transceiver uses cross polarization through an orthomodal transducer and frequency offset between transmit and receive to provide isolation between the transmitter and receiver. The transceiver includes three printed circuit boards directly attached by thermally conductive epoxy to a heat sink which forms part of the antenna dish/transceiver housing for effective heat transfer. Two of the waveguides are used as receiver and transmitter transmission lines into the orthomodal transducer, and two of the waveguides are used as bandpass filters. The transceiver also includes a DC&mdash;DC converter in the power supply which is modified to connect the base plate to the heat sink for compactness and improved heat transfer, and a frequency synthesizer with a phase locked loop hardwired to a single reference frequency for compact size.

Complete outdoor radio unit for LMDS

A monolithic gallium arsenide (GaAs) phased array using integrated gold (Au) posts for interconnecting multiple substrate layers. The phased array includes a GaAs substrate having transmit/receive modules fabricated on one side and radiating elements etched on the backside of the same substrate. The conductive gold posts are integrated on the same side with the transmit/receive modules and interconnect the transmit/receive modules with a distribution network which is printed on a second substrate. Gold posts are also used to interconnect DC bias and control lines of the two substrates.

Method of assembling a monolithic gallium arsenide phased array using

Monolithic gallium arsenide phased array using integrated gold post

Growing community of inventors

Gaithersburg, MD, United States of America

Krishna P Pande