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Sharma A.,AIACTR | Gupta S.K.,Ambedkar Polytechnic | Kanaujia B.K.,AIACTR | Pandey G.P.,MAIT
Proceedings - 4th International Conference on Computational Intelligence and Communication Networks, CICN 2012 | Year: 2012

This paper presents a novel slit cut circular patch antenna (SC-CPA) with supers rate. An analysis of triple band slit cut circular patch antenna with supers rate is presented and results are verified by simulation. Various parameters of antenna such as input impedance, return loss and gain are investigated. The parametric study of frequency response of antenna is carried out for different heights of dielectric supers rate or cover causing the lowering of the resonant frequencies. The proposed antenna possessing triple band characteristics and resonates at 7.2 GHz, 8.5 GHz, and 10 GHz. Antenna possess a peak gain of 2.15 dB with a compactness level of around 20%. Antenna is investigated to provide protection from environmental hazards and it is worth for triple band operations. © 2012 IEEE. Source

Pandey G.P.,Maharaja Agrasen Institute of Technology | Kanaujia B.K.,National Institute of Technology Jalandhar | Gautam A.K.,GBPEC | Gupta S.K.,Ambedkar Polytechnic
Wireless Personal Communications | Year: 2013

An analysis and design of a novel ultra wideband L-strip proximity coupled slot loaded circular microstrip antenna is proposed. The theoretical model is developed using circuit theoretic approach and obtained results are validated by MoM based IE3D simulation software. Theoretical results show a good agreement with simulated results. The patch is designed on a thick substrate of thickness 11 mm for a design frequency of 3.74 GHz and provides ultra wide band operation. The parametric study is carried out for return loss, radiation pattern, antenna efficiency, radiation efficiency and gain. It is observed that the bandwidth of the antenna depends on slot parameter and L-strip feed dimensions. An ultra bandwidth of 2.82 GHz is achieved with consistent radiation characteristics. © 2012 Springer Science+Business Media, LLC. Source

Gupta S.K.,Ambedkar Polytechnic | Kanaujia B.K.,Ambedkar Institute of Advanced Communication Technologies and Research | Pandey G.P.,Maharaja Agrasen Institute of Technology
Wireless Personal Communications | Year: 2013

A novel model of a wide frequency range double MOS loaded circular microstrip patch antenna with airgap between ground plane and substrate is proposed. In this structure two metal oxide semiconductor (MOS) devices are loaded on the patch to enhance the operating frequency range of antenna. To investigate the antenna, different parameters such as resonance frequency, input impedance, frequency agility, VSWR, radiation pattern etc. are calculated and simulated. The resonant frequency of proposed 10 mm radius patch is upward shifted from 5.2 to 6.8 GHz using 1 mm airgap and by loading MOS, antenna can be tuned down to 1.27 GHz operating frequency, which leads to compactness and tunability of antenna. Proposed antenna can be tuned between 1.27 and 6.8 GHz frequency of operation which makes the antenna highly suitable for wide frequency range of mobile communication. The proposed double MOS loaded antenna possessed 82.94 % frequency agility. The antenna is worth for GPS, WLAN, UMTS, and WiMAX operations. © 2012 Springer Science+Business Media New York. Source

Pandey G.P.,Maharaja Agrasen Institute of Technology | Pandey G.P.,Uttarakhand Technical University | Kanaujia B.K.,Ambedkar Institute of Advanced Communication Technologies and Research | Gupta S.K.,Ambedkar Polytechnic | And 2 more authors.
Wireless Personal Communications | Year: 2013

A new frequency agile BST varactor loaded stacked circular microstrip antenna is presented. The antenna is analysed using extended cavity model. One of two bands of antenna is tunable with the help of BST varactor. The upper band is useful for WiMAX and lower band for other wireless communication systems. Various antenna parameters like return loss, resonant frequency, frequency agility etc. have been investigated. The simulated results agree well with the numerical data. A frequency agility of 60.64 % is achieved, which is better than simple Varactor diode loaded antenna. Lowest resonant frequency of 0.866 GHz is obtainable that shows a significant physical area reduction. The group delay of S11 remains constant for entire band of operation. © 2013 Springer Science+Business Media New York. Source

Gupta S.K.,Ambedkar Polytechnic | Sharma A.,Ambedkar Institute of Advanced Communication Technologies and Research | Kanaujia B.K.,Mahatma Jyotiba Phule Rohilkhand University | Rudra S.,Ambedkar Institute of Advanced Communication Technologies and Research | And 2 more authors.
Microwave and Optical Technology Letters | Year: 2013

In this paper, a novel orthogonal slit cut stacked circular patch antenna (SC-SCPA) is proposed for multi band operations. The antenna structure is investigated by cutting two pair of orthogonal slits on the upper patch whose effects are studied in terms of the return loss, input impedance, gain, directivity, and radiation pattern. Multiple resonances are observed that too at lower frequency signifying the compactness and multiband nature of the proposed antenna. The antenna is resonating at four operating frequencies 7.4, 9.0, 9.4, and 10.8 GHz, and 27% reduction in size is achieved by slit cut stacked patch antenna. The proposed theory which is verified by simulation and theoretical results is in good agreement with the simulated results obtained by Ansoft's HFSS. The antenna is working in X-band from 7 to 12 GHz and applications pertaining to this regime are also discussed herein. © 2012 Wiley Periodicals, Inc. Source

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