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- Title
Analysis of Multi-band Rectangular Microstrip Antennas.
- Authors
Deshmukh, Amit A.; Tirodkar, Tejal A.; Jain, Ankita R.; Joshi, Apurva A.; Ray, K. P.
- Abstract
Dual and triple band rectangular microstrip antenna is realized by cutting slots at an appropriate position inside the patch. The slot is said to introduce a mode near the fundamental mode resonance frequency of the patch when its length either equals quarter wave or half wave in length. However, this simpler approximation does not give accurate result while designing them at given frequencies. In this paper, first the comparison of slot frequency calculated by using their half wave or quarter wavelength approximation against the simulated results is presented. This approximation does not give closer results for most of the lengths. Hence an analysis to study the effects of slot (half U-slot and rectangular slot) in dual and triple band rectangular microstrip antennas is presented. Through the analysis it was observed that the slot reduces the resonance frequencies of orthogonal and higher order TM01 and TM11 modes of the rectangular patch and along with TM10 mode, yields dual and triple band response. By studying surface current distributions at various modified modes, a formulation of resonant length at them is proposed. The frequencies calculated using them agrees closely with the simulated and measured results.
- Subjects
MICROSTRIP antennas; MICROWAVE antennas; STRIP transmission lines; APPROXIMATION theory; SIMULATION methods &; models
- Publication
International Journal of Microwave & Optical Technology, 2013, Vol 8, Issue 3, p145
- ISSN
1553-0396
- Publication type
Article