Premium
Design of a corner‐truncated square‐spiral microstrip patch antenna in the 5‐GHz band
Author(s) -
Jeong GyeTaek,
Kim WooSoo,
Kwak KyungSup
Publication year - 2006
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/mop.21399
Subject(s) - microstrip antenna , standing wave ratio , patch antenna , engineering , acoustics , spiral antenna , radiation pattern , physics , electrical engineering , antenna measurement , coaxial antenna , antenna (radio)
In this paper, the characteristics of the square‐spiral antenna for broadband impedance bandwidth are investigated in the 5‐GHz band. The design is based on the 1.25‐turn square spiral antenna in a finite‐sized ground with coaxial SMA feeding. Likewise, the corner of the proposed antenna is truncated so as to ensure smooth current flow. As a result, sufficient impedance bandwidth is obtained (VSWR < 2). The corner‐truncated square‐spiral microstrip patch antenna is able to achieve an impedance bandwidth of about 1.2 GHz or 20.9%, given a VSWR of less than 2. The radiation patterns are broad across the pass band, with gain measuring 2.8–7.3 dBi. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 529–532, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21399