Analysis of tunnel diode loaded H-shaped microstrip antenna. (1st January 2011)

• Record Type: Journal Article
• Authors: Pandey, Ganga Prasad; Kanaujia, Binod Kumar; Gupta, Surendra K.; Jain, Shayna
• Is Part Of: International journal of radio frequency identification technology and applications. Volume 3:Number 4(2011)
• Page Start: 244
• Page End: 259
• Publication Date: 2011-01-01
• Subjects: beam width -- gap capacitance -- compact microstrip antenna -- radiation pattern -- tunnel diode -- frequency agility; Radio frequency identification systems -- Periodicals; 621.38419
• DOI: 10.1504/IJRFITA.2011.043737
• Languages: English
• ISSNs: 1745-3216

Abstract

In this paper, a compact H-shaped microstrip antenna loaded with tunnel diode is proposed and investigated theoretically. The H-shaped patch is investigated, and it has been concluded that a notch dimension of 8 mm by 6 mm gives best results. Then, the tunnel diode is loaded, which provides tunability to the microstrip antenna. The numerical results for input impedance, return loss, resonant frequency and radiation pattern are presented and compared with simulated results. The radiation pattern is varied from 63.8° to 60.6° with bias voltage, and a frequency agility of 25.28% has been achieved.