EP 0137562 A3 19850612 - PHASE-SHIFT CONTROL FOR A PHASED ARRAY ANTENNA
Title (en)
PHASE-SHIFT CONTROL FOR A PHASED ARRAY ANTENNA
Publication
Application
Priority
NL 8303444 A 19831007
Abstract (en)
[origin: EP0137562A2] In a phase-shift control for a phased array antenna the antenna modules are arranged in rows and columns. The phase shift control is provided with central computing means for calculating from the beam direction to be determined and the frequency of the energy emitted, the terms in the mathematical expression for the phase setting for the separate phase shifters in the antenna modules, which terms are the same for all phase shifters, and a computing chip present in each antenna module for determining the desired phase setting from the terms determined by the central computing means and the position of the separate phase shifters in the array.
IPC 1-7
IPC 8 full level
H01Q 3/36 (2006.01)
CPC (source: EP)
H01Q 3/36 (2013.01)
Citation (search report)
- [X] US 4217587 A 19800812 - JACOMINI OMAR J [US]
- [A] US 3697994 A 19721010 - O'DANIEL STEPHEN A
- [A] FR 2235503 A1 19750124 - SIEMENS AG [DE]
- [A] US 3699584 A 19721017 - HRIVNAK GEORGE A, et al
- [A] GB 1163215 A 19690904 - GEN ELECTRIC & ENGLISH ELECT [GB]
- [A] PATENTS ABSTRACTS OF JAPAN, Vol. 5, No. 129, August 19, 1981, page E70-801. & JP-A-56 065 504 (MITSUBISHI DENKI K.K.) 03.06.1981
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0137562 A2 19850417; EP 0137562 A3 19850612; NL 8303444 A 19850501
DOCDB simple family (application)
EP 84201399 A 19841002; NL 8303444 A 19831007