naa a22 4500 510793096 CHVBK 20180411083326.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0856-3 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0856-3 Double MOS Loaded Circular Microstrip Antenna with Airgap for Mobile Communication [Elektronische Daten] [Surendra Gupta, Binod Kanaujia, Ganga Pandey] 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 10mm radius patch is upward shifted from 5.2 to 6.8GHz using 1mm airgap and by loading MOS, antenna can be tuned down to 1.27GHz operating frequency, which leads to compactness and tunability of antenna. Proposed antenna can be tuned between 1.27 and 6.8GHz 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. Springer Science+Business Media New York, 2012 Circular patch microstrip antenna nationallicence Airgap nationallicence MOS nationallicence Agility nationallicence Mobile communication nationallicence Gupta Surendra Department of Electronics Engineering, Ambedkar Polytechnic, Government of Delhi, Shakarpur, Delhi, India aut Kanaujia Binod Department of Electronics & Communication Engineering, Ambedkar Institue of Advanced Communication Technologies & Research, Geeta Colony, Delhi, India aut Pandey Ganga Department of Electronics & Communication Engineering, Maharaja Agrasen Institue of Tecnology, Rohini, Delhi, India aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 987-1002 0929-6212 71:2<987 2013 71 11277 https://doi.org/10.1007/s11277-012-0856-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0856-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gupta Surendra Department of Electronics Engineering, Ambedkar Polytechnic, Government of Delhi, Shakarpur, Delhi, India aut NATIONALLICENCE 700 1- Kanaujia Binod Department of Electronics & Communication Engineering, Ambedkar Institue of Advanced Communication Technologies & Research, Geeta Colony, Delhi, India aut NATIONALLICENCE 700 1- Pandey Ganga Department of Electronics & Communication Engineering, Maharaja Agrasen Institue of Tecnology, Rohini, Delhi, India aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 987-1002 0929-6212 71:2<987 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer