Harmonic suppression of a dual-polarized microstrip array by using microstrip stubs

Chandan Kumar Ghosh and Amrita Medda

Journal of Electromagnetic Waves and Applications, 2017, vol. 31, issue 13, 1205-1215

Abstract: A compact dual-polarized two-element microstrip antenna array has been designed at 3.5 GHz frequency band and the higher order modes up to second harmonics have been successfully suppressed for two orthogonal modes. Two pairs of microstrip stubs of electrical lengths λg1/4 (λg1 = wavelength of 1st harmonic signal) and λg2/8 (λg2 = wavelength of 2nd harmonic signal) respectively have been integrated with the microstrip feed line and two harmonics and a sub-harmonic of the fundamental mode have been reduced. The design offers a port isolation of more than 23 dB over the operating band and the measured bandwidths of the two polarizations of 250 and 275 MHz, respectively, are reported. Simulated and measured results show that the harmonic components exist at 7.05 GHz (1st harmonic, TM20), 10.45 GHz (2nd harmonic, TM30) and also a sub-harmonics at 5.5 GHz (TM12 of the fundamental frequency have been successfully suppressed. The harmonic properties of microstrip antenna with and without stubs have been studied and the result indicates that the harmonic components of the array for two orthogonal polarizations have been well eliminated because of the effect of the tuning stubs. To validate the concept the prototypes were fabricated, tested and compared with the simulated results.

Date: 2017
References: Add references at CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1080/09205071.2017.1292153 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:taf:tewaxx:v:31:y:2017:i:13:p:1205-1215

Ordering information: This journal article can be ordered from
http://www.tandfonline.com/pricing/journal/tewa20

DOI: 10.1080/09205071.2017.1292153

Access Statistics for this article

Journal of Electromagnetic Waves and Applications is currently edited by Mohamad Abou El-Nasr and Pankaj Kumar Choudhury

More articles in Journal of Electromagnetic Waves and Applications from Taylor & Francis Journals
Bibliographic data for series maintained by Chris Longhurst ().