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Directional Coupler Switch

IP.com Disclosure Number: IPCOM000078149D
Original Publication Date: 1972-Nov-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 50K

Publishing Venue

IBM

Related People

Bolt, MH: AUTHOR [+2]

Abstract

The housing containing the directional coupler electric switch, consists of housing circuit half 10 and housing cup half 12. A circuit card 14, located within half 10, has a directional coupler circuit 16 on the outer side and a grounding plane 18 on the inner side. Circuit 16 is formed of three striplines 20, 22, 24 arranged in serpentine fashion.

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Directional Coupler Switch

The housing containing the directional coupler electric switch, consists of housing circuit half 10 and housing cup half 12. A circuit card 14, located within half 10, has a directional coupler circuit 16 on the outer side and a grounding plane 18 on the inner side. Circuit 16 is formed of three striplines 20, 22, 24 arranged in serpentine fashion.

Pin 26 connects plane 18 to the outside. Pin 28 is used to connect coupling segment 20 to an external driver circuit. Pin 29 connects coupling segment 22 to an external receiver. Striplines 20, 22, 24 return in serpentine fashion and are connected to output pins 50, 52. Studs 54 fit into corresponding openings 56 to engage halves 10, 12 into a single housing 58.

A second circuit card 60, located within half 12, has a ground circuit 62 with a serpentine arrangement on the inner side. Recessed area 64, which is longer than card 60, has guide elements 66 so that card 60 can be moved up and down within area 64 by push button stem 68. Return spring 70 is engaged by stem 68 so that it is returned to its initial position after being pushed.

In normal condition, ground circuit 62 is contiguous with the directional coupler circuit lines. Pressing stem 68 down removes ground plane 62, so that coupler circuit 16 is no longer symmetrical and the normal condition is interrupted.

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