EP 1748512 A1 20070131 - Liquid cooled high-frequency filter
Title (en)
Liquid cooled high-frequency filter
Title (de)
Flüssigkeitsgekühlter Hochfrequenzfilter
Title (fr)
Filtre à haute fréquence refroidi par liquide
Publication
Application
Priority
EP 05106808 A 20050725
Abstract (en)
The invention refers to a high-frequency filter (1), comprising a filter housing (2), the filter housing (2) having at least one cover element (2a) with at least one resonator (5, 6, 7, 8, 9, 10, 11, 12) positioned therein and at least one signal input (3), through which a high frequency signal is coupled to the first resonator (5) and a signal output (4), through which a high frequency signal is coupled from the last resonator (10) to downstream appliances wherein the cover element (2a) is made from a thermally conductive material and the resonator (5, 6, 7, 8, 9, 10, 11, 12) is arranged to be in thermal connection with the cover element (2a). The cover element (2a) has at least one recess (23) arranged therein, along which a liquid coolant is guided in order to absorb thermal energy resulting from feeding the high frequency signal to the resonator (5, 6, 7, 8, 9, 10, 11, 12). The liquid cooled high-frequency filter according to the invention allows for an increased input power while retaining the physical dimensions of the filter assembly constant, thus, omitting resonator instabilities due to the development of higher TEM modes.
IPC 8 full level
H01P 1/208 (2006.01); H01P 1/30 (2006.01)
CPC (source: EP)
H01P 1/208 (2013.01); H01P 1/30 (2013.01)
Citation (search report)
- [Y] EP 1253639 A2 20021030 - AAVID THERMALLOY S R L [IT]
- [A] US 5675473 A 19971007 - MCDUNN KEVIN J [US], et al
- [A] US 5960861 A 19991005 - PRICE DONALD C [US], et al
- [Y] MILAK I ET AL: "Synthesis of output filter unit for terrestrial digital video broadcasting", VIDEO/IMAGE PROCESSING AND MULTIMEDIA COMMUNICATIONS, 2003. 4TH EURASIP CONFERENCE FOCUSED ON 2-5 JULY 2003, PISCATAWAY, NJ, USA,IEEE, vol. 2, 2 July 2003 (2003-07-02), pages 857 - 862, XP010650196, ISBN: 953-184-054-7
Citation (examination)
- US 4712158 A 19871208 - KIKUCHI SHUNICHI [JP], et al
- WO 03096473 A1 20031120 - MICROWAVE AND MATERIALS DESIGN [AU], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05106808 A 20050725