Design and testing of a compact circularly polarised microstrip antenna with fractal defected ground structure for L-band applications

Prajapati, Pravin Ratilal; Murthy, Gannavarapu Gopala Krishna; Patnaik, Amalendu; Kartikeyan, Machavaram Venkata
September 2015
IET Microwaves, Antennas & Propagation;2015, Vol. 9 Issue 11, p1179
Academic Journal
A compact circularly polarised (CP) microstrip antenna for mobile satellite communication band of India (1.492-1.518 GHz) is presented. Two asymmetric length rectangular shape slots, perpendicular to each other are printed on the circular patch for realisation of CP radiation. To improve the performance parameters of patch antenna such as axial ratio (AR) bandwidth, return loss bandwidth, radiation efficiency and so on a new technique of combination of fractal theory and defected ground structure (DGS) is proposed for the first time in design of CP antennas. 44.74% size reduction in patch size, enhancements of 62.73% in AR bandwidth, 70.74% in return loss bandwidth and 4.03% in radiation efficiency is achieved as compared with conventional patch antenna, after incorporation of Koch curve fractal DGS in the ground plane. The performance of the developed antenna has been compared with other available L-band planar antennas in the literature, and it is found that the developed structure is better one in many aspects. Laboratory prototype of the antenna is fabricated and experimentally measured for cross verifying the simulated results.


Related Articles

  • Variations of P-shape microstrip antennas for multi-band dual polarised response. Deshmukh, Amit A.; Verma, Priyanka; Pawar, Shefali // IET Microwaves, Antennas & Propagation;2019, Vol. 13 Issue 3, p398 

    A novel design of a P-shape microstrip antenna is proposed. The stub in the P-shape patch modifies the frequency and resonant mode distributions at second-order TM20 mode which along with TM10 and TM01 modes yields dual-polarised triple-frequency response, showing 1−1.5% of impedance...

  • A RHCP Microstrip Antenna with Ultrawide Beamwidth for UHF Band Application. Yuan-zhu Liu; Shao-qiu Xiao; Bing-zhong Wang // International Journal of Antennas & Propagation;2014, p1 

    A novel right-hand circularly polarized (RHCP) UHF microstrip antenna with 3 dB beamwidth of more than 150° is presented in this paper. The 3 dB RHCP beamwidth can be broadened by utilizing a combined ground structure with a hollow truncated cone ground plane and a metallic rectangular plate....

  • CSRR Loaded Tunable L-Strip Fed Circular Microstrip Antenna. Pandey, Ganga; Kanaujia, Binod; Gupta, Surendra; Gautam, A. // Wireless Personal Communications;Jan2014, Vol. 74 Issue 2, p717 

    A tunable L-strip fed circular microstrip antenna on thick substrate with CSRR in the ground plane has been analysed and investigated. The antenna is analysed using cavity model and circuit theoretic approach for initial design and then simulated on IE3D simulation software. The antenna is made...

  • Single Feed L-Slot Microstrip Antenna for Circular Polarization. Kanaujia, Binod; Kumar, Sachin; Khandelwal, Mukesh; Gautam, A. // Wireless Personal Communications;Dec2015, Vol. 85 Issue 4, p2041 

    In this paper, a single layer asymmetric L-slot loaded microstrip patch antenna for circular polarization is proposed. The suggested L-slot excites the two orthogonal patch modes in phase quadrature for circular polarization without truncating any corner of the probe feed square patch. A...

  • Proposed Rules: FEDERAL COMMUNICATIONS COMMISSION.  // Federal Register (National Archives & Records Service, Office of;7/1/2013, Vol. 78 Issue 126, p39200 

    The article presents allocation proposal from the Federal Communications Commission (FCC) for three various space related purposes in the U.S. The Commission makes two alternative proposals to amend the Allocation Table to offer interference protection for Mobile-Satellite Service (MSS) and...

  • Liquid metamaterial based microstrip antenna. Patel, Shobhit K.; Kosta, Y. // Microwave & Optical Technology Letters;Feb2018, Vol. 60 Issue 2, p318 

    Abstract: The microstrip antenna loaded with liquid metamaterials is presented in the manuscript. Liquid split ring resonator (SRR) is used as metamaterial inclusion in the antenna. Distilled water and sea water are the two liquids used one after another to form liquid SRR. The liquid...

  • Metamaterial Inspired Microstrip Antenna Investigations Using Metascreens. Tauseef Asim, Muhammad; Ahmed, Mushtaq // International Journal of Antennas & Propagation;5/19/2015, Vol. 2015, p1 

    A dual layer periodically patterned metamaterial inspired antenna on a low cost FR4 substrate is designed, simulated, fabricated, and tested. The eigenmode dispersion simulations are performed indicating the left handed metamaterial characteristics and are tunable with substrate permittivity....

  • Bandwidth Enhancement of Microstrip Patch Antenna Using Complementary Rhombus Resonator. Tao, Lei; Xu, Jianchun; Li, Haihong; Hao, Yanan; Huang, Shanguo; Lei, Ming; Bi, Ke // Wireless Communications & Mobile Computing;8/12/2018, p1 

    By using complementary rhombus resonator (CRR), a small-size and low-profile microstrip patch antenna (MPA) with broad bandwidth has been proposed. Parametric studies were conducted to illustrate the working principle of the proposed antenna. An additional resonance is introduced by the CRR to...

  • Wideband RCS reduction and gain enhancement microstrip antenna using chessboard configuration superstrate. Zheng, Yue‐jun; Gao, Jun; Cao, Xiang‐yu; Li, Si‐jia; Li, Wen‐qiang // Microwave & Optical Technology Letters;Jul2015, Vol. 57 Issue 7, p1738 

    ABSTRACT A novel design for wideband radar cross section (RCS) reduction and gain enhancement microstrip antenna is proposed. Two 180° phase difference and modified artificial magnetic conductor cells are utilized to combine chessboard configuration superstrate (CCS). The bottom side of CCS...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics