DocumentCode :
540663
Title :
Study on construction of cost-effective printed circuits at millimeter-wave frequencies
Author :
Kawagashira, Hiroyuki ; Omote, Yusuke ; Kuroki, Futoshi
Author_Institution :
Dept. of Electr. Eng., Kure Nat. Coll. of Technol., Hiroshima, Japan
fYear :
2010
fDate :
7-10 Dec. 2010
Firstpage :
1490
Lastpage :
1493
Abstract :
Although the BIT line has a low loss nature at millimeter-wave frequencies, it may be face difficulties such as generation of unwanted modes due to happening to make asymmetrical structures in manufacturing process. For example, the dielectric-supported center conductors may be displaced for the horizontal mid-plane in the parallel metal plate housing, the dielectric substrate being fixed by spacers with slightly-different dimensions, or width of one of two center conductors may be unintentionally trimmed by actual etching. To evaluate increasing dissipation loss due to such asymmetrical structures, degradation of Q-factors was investigated using a BIT line resonator and a technique to overcome such difficulties was proposed using via-holes.
Keywords :
Q-factor; printed circuits; resonators; substrates; BIT line resonator; Q-factors; asymmetrical structures; cost-effective printed circuits; dielectric substrate; dielectric-supported center conductors; dissipation loss; etching; manufacturing process; millimeter-wave frequencies; via-holes; Conductors; Degradation; Dielectric substrates; Metals; Q factor; Resonant frequency; Substrates; Microwaves; Resonators; millimeter-waves; transmission lines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
Type :
conf
Filename :
5728545
Link To Document :
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