Research/Patents/US 4904831
US 4904831Tier 1 — UAP Program Assignee

MITERED MECHANICAL SWITCHES

Assignee

Northrop

Filed as: NORTHROP GRUMMAN CORPORATION

Filed

Jan 3, 1989

Granted

Feb 27, 1990

Location

PITTSBURGH PA US

Abstract

An improved phased-array active antenna transmit-receive means utilizing a multiplicity of individual transmit-receive cells positioned in an array format upon a common wafer of semiconductor material. Each transmit-receiver cell, comprises a multiplicity of redundant, integrated circuit, electronic devices implanted upon the common semiconductor substrate. The transmit-receive cells utilize novel mitered mechanical switches to permanently interconnect individual electronic devices into either transmit or receive circuits during the fabrication and test of the transmit-receive cells. Radio frequency and direct current input and output vias formed from a novel metal evaporation technique connect the devices upon the surface of the common semiconductor wafer to underlying, insulated direct current distribution circuits and a radio frequency manifold. This array of improved phased-array active antenna transmit-receive means comprised of transmit-receive cells sharing common central processing means, logic control and heat dissipation means results in a significant reduction in the size and weight of the standard phased-array active antenna system. This significant reduction in antenna system size and weight is very important in broad band electronic countermeasure systems or narrow band phased array active antenna radar systems as used in advanced tactical fighters, or space applications.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Aug 9, 1989

Rescinded

Sep 27, 1989

Duration

1 month

Inventor

  • 1HARVEY C. NATHANSON

Technology Domains

Click a domain to browse all patents in this category.

Back to patent indexSource: USPTO 35 USC §181 secrecy order records