EP 1760824 A1 20070307 - Temperature compensation of combline resonators using composite inner conductor
Title (en)
Temperature compensation of combline resonators using composite inner conductor
Title (de)
Temperaturkompensation von Kammleitungsformresonatoren mit zusammentgesetztem Innenleiter
Title (fr)
Compensation de temperature de resonateurs en forme de peigne en utilisant conducteur interne composite.
Publication
Application
Priority
EP 05019355 A 20050906
Abstract (en)
The present invention relates to a coaxial resonator and a method of constructing a coaxial resonator. The inner conductor (6) of the coaxial resonator comprises at least two different materials having different coefficients of thermal expansion. It includes an outer hollow component (9) defining a cavity (11) and comprising a first material having a first coefficient of thermal expansion, and a compensation element (10), that is disposed at least partly within the cavity (11) defined by the outer hollow component (9) and comprises a second material having a second coefficient of thermal expansion different from the first coefficient of thermal expansion. The compensation element (10) is engaged by the outer hollow component (9) at least at two locations spaced in the longitudinal direction of the inner conductor (6) such that the compensation element (10) is secured in the longitudinal direction of the inner conductor (6) within the cavity (11) of the outer hollow component (9). The compensation element (10) is not in threaded engagement with the outer hollow component (9) along the major portion of the length of the compensation element (10) and has dimensions and material characteristics such that a desired temperature dependence of the resonant frequency is achieved.
IPC 8 full level
H01P 7/04 (2006.01)
CPC (source: EP)
H01P 7/04 (2013.01)
Citation (applicant)
- GB 2305547 A 19970409 - FSY MICROWAVE INC [US]
- US 4112398 A 19780905 - BURNETT GARY L, et al
Citation (search report)
- [Y] US 4389624 A 19830621 - AIHARA YUKICHI [JP], et al
- [Y] EP 0520699 A1 19921230 - LK PRODUCTS OY [FI]
- [A] JP S58137301 A 19830815 - NIPPON ELECTRIC CO
- [A] US 4730174 A 19880308 - NISHIKAWA TOSHIO [JP], et al
- [A] DE 19917087 A1 20001102 - KATHREIN WERKE KG [DE]
Designated contracting state (EPC)
DE FR GB
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1760824 A1 20070307; EP 1760824 B1 20100811; DE 602005022864 D1 20100923; WO 2007028458 A1 20070315
DOCDB simple family (application)
EP 05019355 A 20050906; DE 602005022864 T 20050906; EP 2006007219 W 20060721