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Kumar, Gurpreet
- Design and Study the Effect of Switching in Microstrip Patch Antenna for Cognitive Radio Applications
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Authors
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1 School of Electronics and Communication Engineering, Lovely Professional University Phagwara – 144411, Punjab, IN
1 School of Electronics and Communication Engineering, Lovely Professional University Phagwara – 144411, Punjab, IN
Source
Indian Journal of Science and Technology, Vol 9, No 47 (2016), Pagination:Abstract
Design of microstrip antenna having switches for accomplishing frequency reconfigurability is proposed. The proposed design is having six resonating frequency bands between 3.34GHz to 3.67GHz which were achieved by using different switching configurations. Switches were assumed as ideal so as to study the simulated results of the antenna .The antenna design was made on the FR4 substrate having height of 1.6mm.The overall size of the antenna is 39×40mm2. Simulated results are utilized to validate performance of antenna. The radiation pattern, return loss and measured bandwidth are presented in the paper. Simulated results presented in this paper make the antenna are appropriate for applications such as cognitive radio which requires sensing of spectrum to use the bandwidth in an optimal manner.Keywords
Cognitive, PIN Diodes, Reconfigurable, SwitchingFull Text
- Ultra-Wideband Antenna’s Design Techniques
Abstract Views :140 |
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Authors
Affiliations
1 Department of School of Electronics and Communication Engineering, Lovely Professional University,Jalandhar - Delhi G.T. Road, Phagwara – 144411, Punjab, IN
1 Department of School of Electronics and Communication Engineering, Lovely Professional University,Jalandhar - Delhi G.T. Road, Phagwara – 144411, Punjab, IN
Source
Indian Journal of Science and Technology, Vol 9, No 47 (2016), Pagination:Abstract
The main objective of this paper is to understand the different methodologies which have been adopted in the recent years in design of Ultra-Wideband Antenna. Methods/Statistical analysis: The patch of the UWB antenna is etched with circular rings to obtain wider bandwidth. Rabbet structured patch can also be utilized for enhancing bandwidth. Ground plane of UWB antenna’s in some cases is parabolic and some have T or L-shape slots to enhance antenna characteristics like increasing bandwidth, band notching at certain frequencies etc. dielectric substrate FR4 is preferred in most of the UWB antenna designs due to less return loss and better bandwidth utilization. Findings: With help of circular patch, more than 160% of Bandwidth is attainable. Use of triangular slots in ground plane can help increase the bandwidth by 45%. A further alteration in ground plane such as grooved ground plane can help minimize the surface waves. Application/Improvements: Since T-shaped slots increases directivity so they are preferred in air-bore applications. L-shaped slots in ground plane helps in RADAR applications.Keywords
Archimedean Spiral, Band Notching, Planar and Non Planar Antennas.Full Text