Presentation 2005-09-12
NRD Guide-Duplexer Using 2 Types Band-Pass Filters at 60GHz
Yusuke MURATA, Futoshi KUROKI, Tsukasa YONEYAMA,
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Abstract(in English) A filter-based duplexer having low-loss and high-isolation performance was developed for a wireless broad-band asymmetric digital subscriber line by using NRD guide technology at 60GHz. Emphasis was placed on rigidity of the circuit configuration. The duplexer consists of a junction circuit and low-loss ceramic resonators. The junction circuit, made by a mode transformer between an NRD guide and a vertical strip line, provided good rigidity and well balanced output levels as well as small insertion loss. The NRD guide band-pass filter using circular ceramic resonators embedded in a thin Teflon sheet has good advantages such as low insertion loss in a pass band and sharp skirt cutoff nature in rejection bands. The NRD guide duplexer was fabricated by assembling them. The isolation between a transmitter port and a receiver port was measured to be more than 45dB, and besides, the insertion loss was measured to be less than 3dB in the 60GHz band.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) NRD guide / Filter / Junction Circuit / Duplexers
Paper # MW2005-76
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Committee MW
Conference Date 2005/9/5(1days)
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Registration To Microwaves (MW)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) NRD Guide-Duplexer Using 2 Types Band-Pass Filters at 60GHz
Sub Title (in English)
Keyword(1) NRD guide
Keyword(2) Filter
Keyword(3) Junction Circuit
Keyword(4) Duplexers
1st Author's Name Yusuke MURATA
1st Author's Affiliation Department of Electrical Engineering, Kure National College of Technology()
2nd Author's Name Futoshi KUROKI
2nd Author's Affiliation Department of Electrical Engineering, Kure National College of Technology
3rd Author's Name Tsukasa YONEYAMA
3rd Author's Affiliation Department of Environmental Information Engineering, Tohoku Institute of Technology
Date 2005-09-12
Paper # MW2005-76
Volume (vol) vol.105
Number (no) 271
Page pp.pp.-
#Pages 4
Date of Issue