ATE414998T1 - MICROWAVE DUPLEXER WITH DIELECTRIC FILTERS, A T-BAR, TWO COAXIAL PORTS AND ONE WAVEGUIDE PORT - Google Patents

MICROWAVE DUPLEXER WITH DIELECTRIC FILTERS, A T-BAR, TWO COAXIAL PORTS AND ONE WAVEGUIDE PORT

Info

Publication number
ATE414998T1
ATE414998T1 AT03425240T AT03425240T ATE414998T1 AT E414998 T1 ATE414998 T1 AT E414998T1 AT 03425240 T AT03425240 T AT 03425240T AT 03425240 T AT03425240 T AT 03425240T AT E414998 T1 ATE414998 T1 AT E414998T1
Authority
AT
Austria
Prior art keywords
dielectric
gap
central
hollow body
metallic
Prior art date
Application number
AT03425240T
Other languages
German (de)
Inventor
Paolo Bonato
Fabio Morgia
Danilo Gaiani
Orazio Antonella D
Pasquale Fera
Original Assignee
Nokia Siemens Networks Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Siemens Networks Spa filed Critical Nokia Siemens Networks Spa
Application granted granted Critical
Publication of ATE414998T1 publication Critical patent/ATE414998T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies

Abstract

Duplexer filter is constituted by a metallized alumina substrate (11) interposed between a robust metallic base (14) and a metallic hollow body (17) milled as a short waveguide tract fixed to the metallic base. The free end of the hollow body (17) is connected to an R140 mechanical waveguide connected to the antenna feeder at the other end. The metallized layout includes two dielectric resonant cavities (CVL, CVH) at the two sides of a central unmetallized gap (GP) on the upper face of the alumina. Each dielectric cavity terminates with a tapered transition (TPL, TPH) towards a microstrip conveying either the transmission or reception signal towards either the high or low bandpass dielectric filter (BPL, BPH) built up on the cavity. The metallic hollow body (17) includes a terminal tract with reduced section (MC-T) whose rectangular opening is faced to the central unmetallized gap (GP) between the two dielectric filters. The walls of the hollow body (17) delimiting the central opening are soldered (by brazing) to the metallic layout delimiting the central unmetallized gap, in order to keep the two dielectric cavities of the filters and the metallic cavity of the hollow body contiguous to each other. The central part of this structure constitutes an extremely compact T-junction including two identical transitions between dielectric and mechanical waveguide, and vice versa, without the need of separate excitation means as probes or irises. The dielectric cavities of the two filters include metallized through holes acting as inductive posts for shaping the separate bandpass responses in a no-tuning way. In a preferred embodiment of the duplexer the central unmetallized gap (GP) of the alumina substrate projects itself outside the original rectangular profile for optimising the design of the T-junction. The enlarged gap is surrounded by a metallized frame (12, 13) for shielding and simplifying the sealing (by brazing) of the space at the two short sides of the gap (fig.10). <IMAGE>
AT03425240T 2003-04-18 2003-04-18 MICROWAVE DUPLEXER WITH DIELECTRIC FILTERS, A T-BAR, TWO COAXIAL PORTS AND ONE WAVEGUIDE PORT ATE414998T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03425240A EP1469548B1 (en) 2003-04-18 2003-04-18 Microwave duplexer comprising dielectric filters, a T-junction, two coaxial ports and one waveguide port

Publications (1)

Publication Number Publication Date
ATE414998T1 true ATE414998T1 (en) 2008-12-15

Family

ID=32893033

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03425240T ATE414998T1 (en) 2003-04-18 2003-04-18 MICROWAVE DUPLEXER WITH DIELECTRIC FILTERS, A T-BAR, TWO COAXIAL PORTS AND ONE WAVEGUIDE PORT

Country Status (3)

Country Link
EP (1) EP1469548B1 (en)
AT (1) ATE414998T1 (en)
DE (1) DE60324766D1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200743248A (en) * 2006-05-05 2007-11-16 Asia Pacific Fuel Cell Tech Fuel cell system incorporating humidifying apparatus into un-reacted gas outlet piping of fuel cell
US7821355B2 (en) 2008-10-27 2010-10-26 Starling Advanced Communications Ltd. Waveguide antenna front end
AU2010348252B2 (en) 2010-03-10 2014-07-31 Huawei Technologies Co., Ltd. Microstrip coupler
US8884725B2 (en) 2012-04-19 2014-11-11 Qualcomm Mems Technologies, Inc. In-plane resonator structures for evanescent-mode electromagnetic-wave cavity resonators
US9178256B2 (en) 2012-04-19 2015-11-03 Qualcomm Mems Technologies, Inc. Isotropically-etched cavities for evanescent-mode electromagnetic-wave cavity resonators
JP2014022864A (en) * 2012-07-17 2014-02-03 Nippon Dempa Kogyo Co Ltd Waveguide filter, and duplexer
CN106797244B (en) * 2014-10-02 2021-01-08 株式会社Kmw Base station device of mobile communication system
HUE043289T2 (en) 2014-12-18 2019-08-28 Huawei Tech Co Ltd Tunable filter
CN109301413B (en) * 2015-04-29 2021-07-16 上海华为技术有限公司 Input/output device of multiplexer and multiplexer
DE102016208097A1 (en) * 2016-05-11 2017-11-16 Siemens Aktiengesellschaft A method of providing a line transition on a printed circuit board and a line transition on a printed circuit board
CN108270058B (en) * 2016-12-30 2020-11-10 京信通信技术(广州)有限公司 Double-layer cavity combiner and coupling device thereof
CN108832239B (en) * 2018-06-06 2019-08-20 中国科学院国家空间科学中心 A kind of Terahertz duplexer across F-G frequency range based on suspension microstrip circuit
DE102020119495A1 (en) * 2020-07-23 2022-01-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein High-frequency structure with substrate-integrated waveguide and rectangular waveguide

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100516A (en) * 1977-03-18 1978-07-11 The Bendix Corporation Microwave circuit having grounding structure
JP3632576B2 (en) * 2000-09-06 2005-03-23 株式会社村田製作所 Filter, multiplexer and communication device
WO2002052674A1 (en) * 2000-12-21 2002-07-04 Paratek Microwave, Inc. Waveguide to microstrip transition

Also Published As

Publication number Publication date
DE60324766D1 (en) 2009-01-02
EP1469548B1 (en) 2008-11-19
EP1469548A1 (en) 2004-10-20

Similar Documents

Publication Publication Date Title
KR101158559B1 (en) Contact-free element of transition between a waveguide and a microstrip line
US6313797B1 (en) Dielectric antenna including filter, dielectric antenna including duplexer, and radio apparatus
ATE414998T1 (en) MICROWAVE DUPLEXER WITH DIELECTRIC FILTERS, A T-BAR, TWO COAXIAL PORTS AND ONE WAVEGUIDE PORT
JP3828438B2 (en) Waveguide / microstrip line converter
US8947177B2 (en) Coupling mechanism for a PCB mounted microwave re-entrant resonant cavity
CN105846024B (en) A kind of SIW double-layer cavity filter
CN102377004A (en) Miniaturized substrate integrated waveguide circulator
CN110400995B (en) Small-sized wide-stop-band HMSIW single-cavity three-mode band-pass filter
CN109301422A (en) Model filters power splitter based on half module substrate integrated wave guide
US6236288B1 (en) Dielectric filter having at least one stepped resonator hole with a recessed or protruding portion, the stepped resonator hole extending from a mounting surface
US7355496B2 (en) Finline type microwave band-pass filter
US6597260B2 (en) Filter, multiplexer, and communication apparatus
CN108258371B (en) Dielectric three-mode filter based on capacitive loading and slotting coupling
JPH0733001U (en) Microwave band filter
CN108879043B (en) Three-mode balance filter adopting coupling branch loading slot line resonance structure
CN111816964A (en) Millimeter wave suspension strip line composite filter
JP3975978B2 (en) Line converter, high-frequency module, and communication device
CN202564510U (en) Low loss radiofrequency plane integration band-pass filter
WO2004114454A1 (en) High-frequency module
CN114747086B (en) Dielectric waveguide filter
JP4687714B2 (en) Line converter, high-frequency module, and communication device
EP1067620B1 (en) Dielectric filter, dielectric duplexer, and communication apparatus using the same
JP2007104290A (en) Directional coupler
CN110148821B (en) Single-cavity four-mode broadband filter realizing wide stop band by adopting cross-shaped feeder
KR20020031955A (en) Dielectric Filters

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties