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Coplanar waveguide to coplanar strips‐fed active leaky‐wave antenna
Author(s) -
Hu ChengChi,
Jou Christina F.,
Wang ChienJen,
Lee ShingHorng,
Wu JinJei
Publication year - 1998
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19981205)19:5<335::aid-mop7>3.0.co;2-f
Subject(s) - coplanar waveguide , strips , antenna (radio) , electrical engineering , leaky wave antenna , optics , optoelectronics , materials science , telecommunications , physics , acoustics , engineering , microstrip antenna , microwave , composite material
A new active coplanar waveguide (CPW) to coplanar strips (CPS)‐fed microstrip leaky‐wave antenna is developed, which is integrated with a Gunn diode as an active source. The CPW–CPS balun is used to excite the first higher order mode of the microstrip leaky‐wave antenna. The active leaky‐wave antenna has a maximum EIRP of 20.4 dBm at 9.759 GHz. The Gunn oscillator frequency is controlled by tuning the Gunn dc bias, and the beam scanning is demonstrated. The measured scanning angle agrees with the prediction; it is close to 12° as the oscillator frequency is tuned from 9.84 to 9.61 GHz. The coplanar structure allows easy integration of many solid‐state devices. It is suitable for monolithic power combining and millimeter‐wave applications. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 335–338, 1998.