Improved Cross-Polarization Characteristics of Circular Microstrip Antenna Employing Arc-Shaped Defected Ground Structure (DGS)

被引：54

作者：

Guha, Debatosh ^{[1
]}

Kumar, Chandrakanta ^{[2
]}

Pal, Surendra ^{[2
]}

机构：

[1] Univ Calcutta, Inst Radiophys & Elect, Kolkata 700009, India

[2] Govt India, Dept Space, Commun Syst Grp, ISRO Satellite Ctr, Bangalore 560017, Karnataka, India

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2009年 / 8卷

关键词：

Cross-polarized (XP) radiation; defected ground plane; defected ground structure (DGS); microstrip antenna; FED PATCH ANTENNA; SUPPRESSION; REDUCTION; PLANE;

D O I：

10.1109/LAWP.2009.2039462

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Application of defected ground structure (DGS) to suppress cross-polarized (XP) radiation from a microstrip patch antenna has been reinvestigated using a new DGS geometry for much improved characteristics. Arc-shaped defect has been used in pair, symmetrically located under a circular patch. A number of optimization parameters have been examined using simulated results, leading to a design indicating improved XP behavior. A set of identical prototypes, with and without DGS, have been experimentally studied. The presence of the DGS shows as much as 30 dB isolation of the XP level from its peak radiation, and that compared to an identical patch without DGS indicates an improvement by as much as 12 dB. The relative suppression in XP values are found to be around 7-12 dB over +/-75 degrees elevation around the boresight of the patch.

引用

页码：1367 / 1369

页数：3

共 11 条

[1]

ansoft, High Frequency Structure Simulator (HFSS)

[2] Broad-band suspended probe-fed plate antenna with low cross-polarization levels [J].

Chen, ZN ;

Chia, MYW .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2003, 51 (02) :345-346

[3] Microstrip patch antenna with defected ground structure for cross polarization suppression [J].

Guha, D ;

Biswas, M ;

Antar, YMM .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2005, 4 :455-458

[4] CROSS POLARIZATION OF MICROSTRIP PATCH ANTENNAS [J].

HANSEN, RC .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1987, 35 (06) :731-732

[5] Broad-band probe-fed patch antenna with a U-shaped ground plane for cross-polarization reduction [J].

Hsu, WH ;

Wong, KL .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2002, 50 (03) :352-355

[6] CROSSPOLARIZATION CHARACTERISTICS OF RECTANGULAR PATCH ANTENNAS [J].

HUYNH, T ;

LEE, KF ;

LEE, RQ .

ELECTRONICS LETTERS, 1988, 24 (08) :463-464

[7] CROSSPOLARISATION CHARACTERISTICS OF CIRCULAR PATCH ANTENNAS [J].

LEE, KF ;

LUK, KM ;

TAM, PY .

ELECTRONICS LETTERS, 1992, 28 (06) :587-589

[8] A Wideband Patch Antenna With Cross-Polarization Suppression [J].

Li, P. ;

Lai, H. W. ;

Luk, K. M. ;

Lau, K. L. .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2004, 3 :211-214

[9] Suppression of unwanted probe radiation in wideband probe-fed microstrip patches [J].

Petosa, A ;

Ittipiboon, A ;

Gagnon, N .

ELECTRONICS LETTERS, 1999, 35 (05) :355-357

[10] A method of cross-polarization reduction [J].

Schejbal, Vladimir ;

Kovarik, Vlastimil .

IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2006, 48 (05) :108-111

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