Bandwidth Enhancement of Microstrip Patch Antenna

Microstrip patch antenna (MPA) is suitable for different applications in wireless communications. MPA suffers from low gain and narrow bandwidth. In this paper we improved its bandwidth by inserting multiple slots in its ground plane. We used FR-4 substrate to design this antenna. The dimensions of this antenna are 60mm and 80mm. The dielectric constant is equal to 4.4 and the height is 1.6mm. We inserted up to 12 slots in ground plane with 1mm width. The spacing between slots is 3mm slots were arranged parallel to the feeding line. Simulation was done using HFSS simulator.

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Bandwidth Enhancement of Rectangular Microstrip Patch Antenna using Defected Ground Structure

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v3.i2.pp428-434 ◽

2016 ◽

Vol 3 (2) ◽

pp. 428 ◽

Cited By ~ 4

Author(s):

Dawit Fitsum ◽

Dilip Mali ◽

Mohammed Ismail

Keyword(s):

Patch Antenna ◽

Return Loss ◽

Ground Plane ◽

Microstrip Patch Antenna ◽

Defected Ground Structure ◽

Ground Structure ◽

Antenna Structure ◽

Bandwidth Enhancement ◽

Microstrip Patch ◽

Rectangular Microstrip Patch Antenna

<p>This paper presents the bandwidth enhancement of a Proximity Coupled Feed Rectangular Microstrip Patch Antenna using a new Defected Ground Structure - an ‘inverted SHA’ shaped slot on the ground plane of the proximity coupled feed rectangular Microstrip patch antenna. The parameters such as Bandwidth, Return loss, VSWR and Radiation efficiency are improved in the proposed antenna than simple proximity coupled feed rectangular Microstrip patch antenna without Defected Ground Structure. A comparison is also shown for the proposed Microstrip patch antenna with the antenna structure without Defected Ground Structure. The proposed antenna resonates in S-band at frequency of 2.4 GHz with bandwidth of 180 MHz. A very good return loss of -47.9223 dB is obtained for the Microstrip patch antenna with an ’inverted SHA’ shaped Defected Ground Structure. Implementing an ‘inverted SHA’ shaped defect in the ground plane of the proximity coupled feed rectangular Microstrip patch antenna results in 5.3% improvement in bandwidth with 16.01% reduction in the overall area of the ground plane as compared to the Microstrip patch antenna without Defected Ground Structure.</p>

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Bandwidth enhancement of a planar monopole microstrip patch antenna

International Journal of Microwave and Wireless Technologies ◽

10.1017/s175907871400141x ◽

2014 ◽

Vol 8 (2) ◽

pp. 237-242 ◽

Cited By ~ 16

Author(s):

Sudeep Baudha ◽

Dinesh Kumar Vishwakarma

Keyword(s):

Patch Antenna ◽

Return Loss ◽

Ground Plane ◽

Microstrip Patch Antenna ◽

Impedance Bandwidth ◽

Communication Services ◽

Bandwidth Enhancement ◽

Microstrip Patch ◽

Peak Gain ◽

Good Agreement

This paper presents a simple broadband planar monopole microstrip patch antenna with curved slot and partial ground plane. The proposed antenna is designed and fabricated on commercially available FR4 material with εr = 4.3 and 0.025 loss tangent. Bandwidth enhancement has been achieved by introducing a curved slot in the patch and optimizing the gap between the patch and the partial ground plane and the gap between the curved slot and the edge of the patch. Simulated peak gain of the proposed antenna is 4.8 dB. The impedance bandwidth (defined by 10 dB return loss) of the proposed antenna is 109% (2–6.8 GHz), which shows bandwidth enhancement of 26% as compared with simple monopole antenna. The antenna is useful for 2.4/5.2/5.8-GHz WLAN bands, 2.5/3.5/5.5-GHz WiMAX bands, and other wireless communication services. Measured results show good agreement with the simulated results. The proposed antenna details are described and measured/simulated results are elaborated.

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A Study on Dual-band Microstrip Rectangular Patch Antenna for Wi-Fi

Proceedings of Engineering and Technology Innovation ◽

10.46604/peti.2020.6266 ◽

2020 ◽

Vol 16 ◽

pp. 01-12

Author(s):

Rabnawaz Sarmad Uqaili ◽

Junaid Ahmed Uqaili ◽

Sidrish Zahra ◽

Faraz Bashir Soomro ◽

Ali Akbar

Keyword(s):

Dielectric Constant ◽

Patch Antenna ◽

Patch Size ◽

Return Loss ◽

Ground Plane ◽

Microstrip Patch Antenna ◽

Dual Band ◽

Microstrip Patch ◽

Rectangular Patch ◽

802.11 Wlan

This paper presents the design of a dual-band microstrip patch antenna for Wi-Fi that operates at 2.5 GHz and 5.8 GHz. The antenna contains a rectangular patch with two rectangular slots. The first slot is incorporated in the patch while the second slot is incorporated in the ground plane. The antenna is based on a microstrip fed rectangular patch printed on the FR-4 epoxy substrate with a dielectric constant of 4.4 and a thickness of 1.6 mm with patch size 24 mm × 21 mm. The simulated result shows that the realized antenna successfully works on dual-band and subsequently achieves a bandwidth of 100 MHz and 200 MHz as well as the return loss about -29.9 dB and -15.16 dB for 2.5 GHz and 5.8 GHz respectively. A stable omnidirectional radiation pattern is observed in the operating frequency bands. The antenna meets the required specifications for 802.11 WLAN standards.

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The Improved Radiations in Planar Microstrip Patch Antenna using Linear Slot Etched Ground Plane

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.e6818.038620 ◽

2020 ◽

Vol 8 (6) ◽

pp. 123-127

Keyword(s):

Dielectric Constant ◽

Resonant Frequency ◽

Patch Antenna ◽

Ground Plane ◽

Dominant Mode ◽

Microstrip Patch Antenna ◽

Microstrip Patch ◽

Rectangular Microstrip Patch Antenna ◽

Simulation Results ◽

Good Agreement

Radiations improvement in a probe fed rectangular microstrip patch antenna using linear slot etched ground plane is proposed. Conventional MPA is designed using Glass Epoxy FR4 substrate. Substrate has dielectric constant 4.4 and its thickness 1.6 mm, operated at resonant frequency 3.05 GHz. The proposed method is simple and easy to etch on a substrate. This will suppress cross-polarized (XP) radiation field only without disturbing the dominant mode and co-polarized radiations. The concept has been tested using HFSS tool and verified its results experimentally. The experimental results show a good agreement with the simulation results.

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Multiband Microstrip Patch Antenna for 5G Applications using DGS Technique

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.35826 ◽

2021 ◽

Vol 9 (VI) ◽

pp. 4796-4801

Author(s):

G Naga Shashank

Keyword(s):

Dielectric Constant ◽

Epoxy Resin ◽

Patch Antenna ◽

Ground Plane ◽

Relative Dielectric Constant ◽

Microstrip Patch Antenna ◽

Ka Band ◽

Software Simulation ◽

Microstrip Patch ◽

Simulation Results

In this article, a multiband microband antenna fed by a microband feeder is proposed, with a total area of 30x24x1.6 mm ^ 3 [1]. The planned antenna is printed on the FR4 epoxy resin substrate with a relative dielectric constant of 4.4 [2]. The multiband characteristics are produced by the differently shaped grooves used in the ground plane. The antenna covers two frequency bands, 24.0 GHz to 24.53 GHz, for K-band applications, and 26.7 GHz to 27.6 GHz, for Ka-band applications [3] [4]. The prototype of the expected antenna is planned and measured in advance. Ansys HFSS software simulation results are consistent with measurement result.

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