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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Print: 0040-2508
ISSN Online: 1943-6009

Volumes:
Volume 78, 2019 Volume 77, 2018 Volume 76, 2017 Volume 75, 2016 Volume 74, 2015 Volume 73, 2014 Volume 72, 2013 Volume 71, 2012 Volume 70, 2011 Volume 69, 2010 Volume 68, 2009 Volume 67, 2008 Volume 66, 2007 Volume 65, 2006 Volume 64, 2005 Volume 63, 2005 Volume 62, 2004 Volume 61, 2004 Volume 60, 2003 Volume 59, 2003 Volume 58, 2002 Volume 57, 2002 Volume 56, 2001 Volume 55, 2001 Volume 54, 2000 Volume 53, 1999 Volume 52, 1998 Volume 51, 1997

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v78.i4.20
pages 295-303

DEFECTED GROUND APPROACH TO REDUCE BACK RADIATIONS IN MAGNETO-ELECTRIC DIPOLE ANTENNA

Neetu
Department of Electronics and Communication, Manipal University Jaipur, Dehmi Kalan, Near GVK Toll Plaza, Jaipur-Ajmer Expressway, Jaipur, Rajasthan 303007, India
V. N. Tiwari
Department of Electronics and Communication, Manipal University Jaipur, Dehmi Kalan, Near GVK Toll Plaza, Jaipur-Ajmer Expressway, Jaipur, Rajasthan 303007, India

ABSTRACT

An improved design of magneto-electric dipole antenna with high front to back ratio (FBR) for mobile base station is proposed. To reduce the back radiations in the antenna, semi oval defects in the ground plane has been proposed. The prototype antenna has achieved high FBR without much affecting the gain and bandwidth. The proposed antenna has achieved impedance bandwidth of 71.4% for the frequency range 1.8 GHz–3.8 GHz. The measured FBR varies from 21 dB to 29 dB with stable gain of 7.1 dBi and unidirectional radiation pattern with symmetrical E-plane and H-plane has also been obtained.


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