Global Patent Index - EP 0997965 A1

EP 0997965 A1 20000503 - Wilkinson power divider circuit and corresponding design method

Title (en)

Wilkinson power divider circuit and corresponding design method

Title (de)

Wilkinson-Leistungsverteilerschaltung und entsprechendes Entwurfsverfahren

Title (fr)

Circuit diviseur de puissance Wilkinson et sa méthode de conception

Publication

EP 0997965 A1 20000503 (EN)

Application

EP 98120556 A 19981030

Priority

EP 98120556 A 19981030

Abstract (en)

The present invention provides a a Wilkinson power divider circuit, comprising a plurality of N transmission lines (TRL1, TRL2, ..., TRLN), N being an integer equal to or greater than 2, having a respective length of 1 = lambda 0/4 at a center frequency f0 , where lambda 0 is the wavelength at f0, and respective line impedances Zw; said plurality of N transmission lines (TRL1, TRL2, ..., TRLN) being connected to a first port (P1) at a respective first end, to a respective second port (P2, P3, ..., PN+1) at a respective second end, and via a respective resistor (R1, ..., RN) to a node (O) at the respective second end. By means of an additional LC circuit (50) comprising at least an inductor having an inductance L and a capacitor having a capacitance C connected in series between said first port (P1) and said first ends of said plurality of N transmission lines (TRL1, TRL2, ..., TRLN) having its resonance frequency fr at or near said center frequency fo, it is possible to broaden the bandwith at a desired value of the minimum isolation. <IMAGE>

IPC 1-7

H01P 5/16

IPC 8 full level

H01P 5/16 (2006.01)

CPC (source: EP)

H01P 5/16 (2013.01)

Citation (search report)

  • [A] GB 2282008 A 19950322 - HUGHES AIRCRAFT CO [US]
  • [XY] PATENT ABSTRACTS OF JAPAN vol. 5, no. 121 (E - 068) 5 August 1981 (1981-08-05)
  • [Y] A.A.M. SALEH: "PLANAR ELECTRICALLY SYMMETRIC N-WAY HYBRID POWER DIVIDERS/COMBINERS", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES., vol. 28, no. 6, June 1980 (1980-06-01), NEW YORK US, pages 555 - 563, XP002095839

Designated contracting state (EPC)

DE DK FI FR GB SE

DOCDB simple family (publication)

EP 0997965 A1 20000503

DOCDB simple family (application)

EP 98120556 A 19981030