Details

Autor(en) / Beteiligte

• Liu, Ji-Chyun
• Soong, Ta-Wei
• Chang, Dau-Chyrh
• Chen, Jong-Yih

Titel

Active integration ring antenna/phase shifter with annular ring slot for 5-GHZ WLAN direct conversions

Ist Teil von

• Microwave and optical technology letters, 2005-12, Vol.47 (5), p.475-480

Ort / Verlag

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

Erscheinungsjahr

2005

Link zum Volltext

Quelle

Wiley Online Library

Beschreibungen/Notizen

• A compact active ring antenna integrated for direct conversion or zero‐IF detection is presented in this paper. The ring antenna with annular ring slot exhibits wide‐bandwidth and high‐gain performances. Meanwhile, the ring acting as a phase shifter provides the necessary 90° characteristics to operate with I/Q signals for direct conversions. Two Schottky diodes are connected to the ring structure and used as the mixer. Conversion gain Giso = 4.2 dB. The work is the case at 5.0 GHz for WLAN applications. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 475–480, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21205