A reflection type of MSW signal-to-noise enhancer in the 400-MHz band

Author

Kuki, Toshinobu ; Nomoto, T.

Author_Institution

NHK Sci. & Tech. Res. Labs., Tokyo, Japan

fYear

1995

fDate

16-20 May 1995

Firstpage

111

Abstract

We have developed a reflection type of signal-to-noise enhancer operating in the 400-MHz band, which can easily be inserted into the second IF stage used in current DBS receivers. The new enhancer consists of a microstrip line using a ceramic substrate with a high dielectric constant and a LaGa-YIG film with low saturation magnetization. Enhancement of 8 dB was achieved in the 40-MHz bandwidth. We evaluated the effect of the new enhancer on noise reduction in DBS reception and found that the signal-to-noise enhancer achieved 2 to 3-dB noise reduction.<>

Keywords

UHF filters; direct broadcasting by satellite; garnets; high definition television; lanthanum compounds; magnetic microwave devices; magnetostatic wave devices; microstrip lines; television receivers; video signal processing; yttrium compounds; 2 to 3 dB; 40 MHz; 400 MHz; DBS receivers; IF stage; LaYGGIG; LaYGa5O12Fe5O12; MSW signal-to-noise enhancer; ceramic substrate; dielectric constant; microstrip line; noise reduction; reflection type; saturation magnetization; Bandwidth; Ceramics; Dielectric substrates; High-K gate dielectrics; Microstrip; Noise reduction; Optical films; Reflection; Satellite broadcasting; Saturation magnetization;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1995., IEEE MTT-S International

Conference_Location

Orlando, FL, USA

ISSN

0149-645X

Print_ISBN

0-7803-2581-8

Type

conf

DOI

10.1109/MWSYM.1995.406085

Filename

406085