Details

Autor(en) / Beteiligte

• Kyoung, Un-Hwan
• Kim, Gun-Duk
• Lee, Sang-Shin
• Eo, Yun-Seong

Titel

Microstrip ring resonator filter enabling enhanced sideband suppression

Ist Teil von

• Microwave and optical technology letters, 2008-11, Vol.50 (11), p.2866-2869

Ort / Verlag

Hoboken: Wiley Subscription Services, Inc., A Wiley Company

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A microstrip filter based on a single‐ring bandpass section integrated with a band‐trimming section incorporating two cascaded rings was demonstrated featuring enhanced sideband suppression. The stop‐band for the input bandpass section could be selectively eliminated via the proposed band‐tailoring section without causing any excessive loss, thereby improving the overall transmission of the device with regard to higher suppression, sharper roll‐off, and narrower bandwidth. For the completed device with the center frequency at 4 GHz, the suppression ratio was increased by −8 dB, the 3‐dB bandwidth was reduced from 98 MHz to 48 MHz with negligible excessive loss, and the filter quality factor was elevated by about 105%. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2866–2869, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23795