Reconfigurable printed-dipole antenna with harmonic trap for wideband applications

• Published in: Microwave and optical technology letters Vol. 48; no. 5; pp. 927 - 929
• Main Authors: Mirkamali, Ali, Hall, Peter S., Soleimani, Mohammad
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.05.2006
• Subjects: harmonic trap; printed dipole; reconfigurable antenna; wideband
• ISSN: 0895-2477; 1098-2760
• DOI: 10.1002/mop.21521

This paper presents the concept of using a harmonic trap to design a wideband reconfigurable antenna. The reconfigurable antennas can be used to select one of a number of operating frequency bands. If these bands cover a very wide frequency range, then one of the higher‐frequency bands can be a harmonic of a lower band. When the antenna operates at the lower band, it can have a good match at the high frequency. This paper proposes a technique for designing a wideband reconfigurable printed dipole antenna so as to select only one of the operating frequency bands by using a harmonic trap. The antenna is designed, fabricated, and measured. It is shown that by using switches and harmonic traps, a reconfigurable printed dipole antenna can be designed over a frequency range of 3:1. The antenna is thus suitable for frequency switching in the FCC ultra‐wideband allocation. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 927–929, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21521