Miniaturization of microstrip patch antennas using Koch fractal geometry on the ground plane

2018 ◽

Vol 1 (1) ◽

pp. 11-14

Author(s):

Suroj Burlakoti ◽

Prakash Rai

Keyword(s):

Radiation Pattern ◽

Patch Antenna ◽

Return Loss ◽

Ground Plane ◽

Performance Comparison ◽

Microstrip Patch Antenna ◽

Simulation Software ◽

Patch Antennas ◽

Microstrip Patch Antennas ◽

Microstrip Patch

In this paper, Microstrip patch antennas with rectangular and swastika shape of patch are designed and its performance parameters are compared with each other. Rectangular and Swastika shaped patch are considered in this paper with common rectangular ground plane. The antenna is simulated at 2.4 GHz using HFSS simulation software. This work mainly includes modification of antenna patch to improve the antenna parameters. The parameters of antenna such as Return loss, VSWR Bandwidth and radiation pattern are compared using simulation. The performance of Swastika shaped antenna was found to be better than rectangular shaped microstrip patch antenna with improved Return Loss, VSWR, Bandwidth and Radiation Pattern.

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Wideband Microstrip Patch Antennas with Transverse Electric Modes

Applied Computational Electromagnetics Society ◽

10.47037/2020.aces.j.350817 ◽

2020 ◽

Vol 35 (8) ◽

pp. 971-974

Author(s):

Tanzeela Mitha ◽

Maria Pour

Keyword(s):

Transverse Electric ◽

Ground Plane ◽

Transverse Magnetic ◽

Impedance Bandwidth ◽

Patch Antennas ◽

Microstrip Patch Antennas ◽

Microstrip Patch ◽

Te Mode ◽

Artificial Magnetic Conductors ◽

Unit Cells

A wideband microstrip patch antenna, exciting the fundamental transverse electric (TE) mode, is investigated. The excitation of the TE mode is facilitated through replacing both of the patch and ground plane of a conventional microstrip antenna with artificial magnetic conductors (AMC), consisting of unipolar compact photonic bandgap (UC-PBG) unit cells. The AMC patch and the ground plane of this antenna behave as magnetic conductors within the bandgap region of the unit cells. Similar to conventional patch antennas, it is shown that by cutting a U-shaped slot in the AMC patch, wideband characteristics are realized. The antenna shows a 40% impedance bandwidth and operates at the TE10 mode. Moreover, the width of the patch is 1.75 times smaller than its length, reducing the overall size of the antenna by about 60%, compared with the conventional U-slot PEC antenna supporting the transverse magnetic (TM) mode.

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Omnidirectional multi-band stacked microstrip patch antenna with wide impedance bandwidth and suppressed cross-polarization

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078716000209 ◽

2016 ◽

Vol 9 (3) ◽

pp. 629-638 ◽

Cited By ~ 2

Author(s):

Jaishanker Prasad Keshari ◽

Binod Kumar Kanaujia ◽

Mukesh Kumar Khandelwal ◽

Pritam Singh Bakariya ◽

Ram Mohan Mehra

Keyword(s):

Ground Plane ◽

Impedance Bandwidth ◽

Triple Resonance ◽

Patch Antennas ◽

Cross Polarization ◽

Microstrip Patch Antennas ◽

Microstrip Patch ◽

Resonance Frequencies ◽

Polarization Level ◽

Triple Band

In this paper, triple-band stacked microstrip patch antennas (MPAs) are presented with wide impedance bandwidth and suppressed cross-polarization level. Triangular and circular shaped slots are embedded in the patch of antenna. Slot-loaded microstrip patches are fed with meandered microstrip line supported by a semi-ground plane structure. Triangular shaped slot-loaded MPA shows triple resonance at frequencies 2.2, 4.45, and 5.3 GHz having bandwidth of 45.9, 19.23, and 15.67%, respectively. Circular shaped slot-loaded MPA also shows triple resonance at frequencies 2.2, 4.42, and 5.38 GHz having bandwidth of 50.24, 33.21, and 13.43%, respectively. Using circular slot in place of triangular; bandwidth of the first and the second band is improved by 4.34 and 13.98%, respectively. Both the proposed antennas show an omnidirectional radiation pattern at all three resonance frequencies in the xz-plane with almost 0 dBi gain. Both the proposed antennas are fabricated on a FR-4 epoxy substrate and show a minimum level of cross-polarization radiations.

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