Microstrip Patch Antenna With Skew-F Shaped DGS for Dual Band Operation

A novel dual layer rectangular printed Antenna based on loop type Frequency selective surfaces with five concentric rings and I shaped defected ground structure (DGS) is designed and investigated. The designed antenna is for applications in C band, WiFi devices and some cordless telephones and X band radiolocation, airborne and naval radars as multiband operational frequencies are at 5.5GHz, 6.81GHz, 9.3GHz and thus covers two wireless communication band C Band (4 to 8 GHz) and X band (8 to 12 GHz) The bandwidth is 200 MHz, 300 MHz and 1 GHz respectively and measured gain of this designed antenna are 2.42dBi against 5.5GHz, 2.80dBi against 6.81GHz, 6.76dBi against 9.3GHz. The proposed antenna in addition to multiband operation also exhibits miniaturization. The Floquet port technique is used to analyze concentric rings. The results comparison of proposed structure with the basic dual layer antenna resonating at 5.5GHz shows that the patch area is reduced by 58.15% while the volume of the antenna is reduced by 81.5%.

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“…The proposed antenna is designed and simulated on Ansoft HFSS v.14 and simulated results are experimentally verified [16].…”

Section: Introductionmentioning

confidence: 99%

Multiband and Miniaturized dual layer Antenna incorporated with FSS and DGS

Sah

Tripathy

Mittal³

2018

AEM

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“…However, the use of air gap increases the height/volume of the antenna which is undesired in several (compact) applications [15]. Therefore, a design that uses small air gap for the similar antenna design is reported earlier [13] There are several microstrip patch antennas available in literature, which operate at dual resonant frequencies [14,[18][19][20][21][22][23][24][25][26][27][28][29][30]. For example antenna reported in [18] uses stacked configuration [18], whereas geometry presented in [19] uses suspended configuration (with air gap) [19].…”

Section: Introductionmentioning

confidence: 99%

Dual Band Coplanar Capacitive Coupled Microstrip Antennas With and Without Air Gap for Wireless Applications

Kasabegoudar¹,

Kumar²

2013

PIER C

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Abstract-This article presents the coplanar capacitive coupled probe fed microstrip antennas for dual frequency band operation. The proposed antenna is excited by a single probe feed connected to a capacitive strip. Of the two dual band antennas presented here, the first one uses small air gap and the other is designed without air gap. In the first case an effort has been made to reduce the height of suspended antenna. A vertical slot is placed to obtain antenna resonance at low frequency side, and also for proper impedance matching. After presenting the basic geometry the second configuration (which uses no air gap) which also offers dual band operation at the expense of reduced bandwidth is presented. Measured values fairly agree with the simulated results.

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“…Technologies like Low-temperature co-fire ferrite (LTCF), Low temperature co-fire ceramic technology (LTCC) and some structures like Photonic band gap (PBG), electromagnetic Band Gap (EBG), ground plane aperture (GPA) etc were also developed to enhance the antenna performance [10][11][12].But these structures have design constraints so these cannot be used for designing microwave wave circuits. So in order to alleviate these problems a new technology DGS (Defected Ground Structures) have been proposed.…”

Section: Introductionmentioning

confidence: 99%

“…Defected ground structure is realized by etching a simple shape (defect) from the ground plane. Depending on the shape and dimensions of the defect, the shielded current distribution in the ground plane is disturbed, resulting in a controlled excitation and propagation of the electromagnetic waves through the substrate layer [12][13].For a better performance the shape of the defect may be changed from a simple shape to a complicated one.…”

Section: Introductionmentioning

confidence: 99%

Monopole Triple Band Circular Patch Antenna using Defected Ground Structure for IMT 2000/UMTS/ WLAN/WiMAX Applications

Kapoor¹,

Parkash²

2012

IJCA

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This paper presents a circular patch multiband monopole microstrip antenna using DGS (Defected Ground Structure) technique. In this monopole multiband antenna L-shaped defects are inserted into both sides of ground plane of patch antenna forming a defected ground structure. The antenna exhibits three simulated bands and impedance bandwidth of lower frequency band is 0.73 GHz from 1.91 to 2.64 GHz, the middle frequency band is 1.06 GHz from 2.84-3.92 GHz and upper frequency band is of 0.56 GHz from 5.45-6.01 GHz. The various characteristic parameters like S-parameters, gain, current distribution and radiation pattern are studied. The proposed antenna is suitable for UMTS/WLAN/WiMAX and partial IMT-2000 applications. The compact size antenna using DGS technique is simulated using IE3D software.

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Microstrip Patch Antenna With Skew-F Shaped DGS for Dual Band Operation

Cited by 44 publications

References 17 publications

Multiband and Miniaturized dual layer Antenna incorporated with FSS and DGS

Multiband and Miniaturized dual layer Antenna incorporated with FSS and DGS

Dual Band Coplanar Capacitive Coupled Microstrip Antennas With and Without Air Gap for Wireless Applications

Monopole Triple Band Circular Patch Antenna using Defected Ground Structure for IMT 2000/UMTS/ WLAN/WiMAX Applications

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