A Crown-Shaped Microstrip Patch Antenna for Wireless Communication Systems
This paper describes the design and analysis of a modified E-shaped and a crown-shaped microstrip patch antenna with excitation frequency of 1.2 GHz. Both the antennas are derived from a Rogers RT/Duroid 6202 laminate substrate (dielectric constant = 2.94
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Abstract This paper describes the design and analysis of a modified E-shaped and a crown-shaped microstrip patch antenna with excitation frequency of 1.2 GHz. Both the antennas are derived from a Rogers RT/Duroid 6202 laminate substrate (dielectric constant = 2.94 and loss tangent = 0.001). The simulation is achieved using the software Ansoft Nexxim. From the simulation results it is observed that the crown-shaped antenna exhibits 20.15 dB better return loss and 50% more gain than the modified E-shaped antenna. Furthermore, better impedance matching is observed for the crown-shaped antenna exhibiting that the crown-shaped antenna finds better applications than the modified E-shaped antenna to be effectively used for wireless application. Keywords Microstrip antenna Gain Ansoft
Wireless communication Return loss
1 Introduction This paper elucidates the design, simulation, and analysis of a modified E-shaped and a crown-shaped microstrip patch antenna [1–5]. The excitation frequency for both the antennas has been chosen as 1.2 GHz. The antennas are derived from a laminate substrate having a loss tangent of 0.001. Both the antennas are made compact and thin with the substrate material having low value of dielectric constant
A. Nag (&) D. Chaudhuri Modern Institute of Engineering & Technology, Bandel, Hooghly 712123, WB, India e-mail: [email protected] D. Chaudhuri e-mail: [email protected] K. Roy Asansol Engineering College, Asansol 713305, WB, India e-mail: [email protected] © Springer Nature Singapore Pte Ltd. 2018 A. Kalam et al. (eds.), Advances in Electronics, Communication and Computing, Lecture Notes in Electrical Engineering 443, https://doi.org/10.1007/978-981-10-4765-7_42
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Fig. 1 Geometry of a modified E-shaped antenna and b crown-shaped antenna
(2.94). Simulation is consummate utilizing the software Ansoft and Nexxim [6] which helps providing good insight on the effects of various parameters.
2 Antenna Configuration The geometries of the modified E-shaped antenna [7–9] and the crown-shaped antenna are shown in Fig. 1a, b, respectively. The excitation frequency for both antennas has been chosen as 1.2 GHz. The antennas are derived from a Rogers RT/Duroid 6202 laminate substrate (loss tangent = 0.001), having dielectric constant 2.94. The simulation is completed utilizing the software Ansoft Nexxim.
3 Simulated Results for Modified E-Shaped and Crown-Shaped Antenna 3.1
S (1, 1) and Return Loss
S (1,1) signifies the total amount of power reflected from the antenna and hence it is also known as the reflection coefficient. From Fig. 2a it implies that the modified E-shaped antenna radiates best at 4.8 GHz, where S(1, 1) = −22.5 dB and the observed bandwidth for the modified E-shaped antenna is found to be 830 MHz, whereas from Fig. 2b it implies that the crown-shaped antenna radiates best at 5.2 GHz, where S(1, 1) = −43 dB and the observed bandwidth for the crown-shaped antenna is found to be 2.4 GHz, viewing that the crown-shaped antenna exhibits 20.15 dB better retur
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