EP 1530249 A1 20050511 - Voltage tunable coplanar phase shifters
Title (en)
Voltage tunable coplanar phase shifters
Title (de)
Spannungsgesteuerte koplanare Phasenschieber
Title (fr)
Déphaseurs coplanaires accordables en tension
Publication
Application
Priority
- EP 00955822 A 20000822
- US 15061899 P 19990824
Abstract (en)
A reflective termination coplanar waveguide phase shifter including a substrate, a tunable dielectric film having a dielectric constant between 70 to 600, a tuning range of 20 to 60%, and a loss tangent between 0.008 to 0.03 at K and Ka bands positioned on a surface of the substrate, first and second open ended coplanar waveguides positioned on a surface of the tunable dielectric film opposite the substrate, microstrip line for coupling a radio frequency signal to and from the first and second coplanar waveguides, and a connection for applying a control voltage to the tunable dielectric film. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/18 (2006.01)
CPC (source: EP)
H01P 1/181 (2013.01)
Citation (search report)
- [A] EP 0608889 A1 19940803 - HUGHES AIRCRAFT CO [US]
- [A] US 5694134 A 19971202 - BARNES FRANK [US]
- [A] CHAKALOV R A ET AL: "Fabrication and investigation of YBa2Cu3O7-delta/Ba0.05Sr0.95TiO3 thin film structures for voltage tunable devices", PHYSICA C,NL,NORTH-HOLLAND PUBLISHING, AMSTERDAM, vol. 308, no. 3-4, November 1998 (1998-11-01), pages 279 - 288, XP004150032, ISSN: 0921-4534
- [A] GEVORGIAN S S ET AL: "ELECTRICALLY CONTROLLED HTSC-FERROELECTRIC COPLANAR WAVEGUIDE", IEE PROCEEDINGS: MICROWAVES, ANTENNAS AND PROPAGATION,GB,IEE, STEVENAGE, HERTS, vol. 141, no. 6, PART H, 1 December 1994 (1994-12-01), pages 501 - 503, XP000484786, ISSN: 1350-2417
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05000308 A 20000822