Browse Prior Art Database

Microwave Switching Using Hybrid Junction

IP.com Disclosure Number: IPCOM000092682D
Original Publication Date: 1967-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Rutz, EM: AUTHOR

Abstract

N receivers or transmitters can be connected simultaneously and loosely to any N of M antenna beams. Such is effected with a considerably smaller number of hybrid junctions and switches than is needed when using conventional methods.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Microwave Switching Using Hybrid Junction

N receivers or transmitters can be connected simultaneously and loosely to any N of M antenna beams. Such is effected with a considerably smaller number of hybrid junctions and switches than is needed when using conventional methods.

The building blocks of the switching matrix consist of two hybrid junctions H1 and H2 connected by one double-pole, single-throw switch S1. When S1 is open, a signal from antenna beam A1 appears on line L1 and a signal from A2 appears on L3. When S1 is closed, a signal from A1 appears on L3 and a signal from A2 appears on L1. A1 is always isolated from A2.

A signal from A1 will, because S1 is open, appear on L1 which is connected by S3 to R1. A signal from A3 will, because S2 is closed, appear on L4 which is connected by S4 to R2. Signals from A2 and A4 appear on L3 and L2, respectively, neither of which is connected to a receiver. In this manner, each of the four input terminals A1... A4 can be connected to either of the receiver terminals without restriction. Because only one control signal is required to operate each building block of the switching matrix, a reduction in the total number of control signals necessary for the entire matrix is realized.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]