scholarly journals Design and optimization of a microstrip patch antenna for increased bandwidth

2013 ◽  
Vol 5 (4) ◽  
pp. 529-535 ◽  
Author(s):  
Archana Agrawal ◽  
Pramod Kumar Singhal ◽  
Ankit Jain
Keyword(s):  
Patch Antenna ◽  
High Gain ◽  
Wide Frequency Range ◽  
Frequency Range ◽  
Composite Effect ◽  
Design And Optimization ◽  
Wireless Applications ◽  
Microstrip Patch ◽  
Low Profile ◽  
Radar Applications

With the ever-increasing need for wireless communication and the emergence of many systems, it is important to design broadband antennas to cover a wide frequency range. The aim of this paper is to design a broadband patch antenna, employing the three techniques of slotting, adding directly coupled parasitic elements and fractal electromagnetic band gap (EBG) structures.The bandwidth is improved from 9.3 to 23.7%. A wideband ranging from 4.15 to 5.27 GHz is obtained. Also, a comparative analysis of embedding EBG structures at different heights is also done. The composite effect of integrating these techniques in the design provides a simple and efficient method for obtaining low-profile, broadband, and high-gain antenna. By the addition of parasitic elements the bandwidth was increased to 18%. Later on by embedding EBG structures the bandwidth was increased up to 23.7%. The design is suitable for a variety of wireless applications like WLAN and radar applications.

scholarly journals Compact Rhombus Ring Dual Frequency Microstrip Antenna for Wireless Applications

2019 ◽  
Vol 9 (2S3) ◽  
pp. 213-216
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Microstrip Patch Antenna ◽  
Dual Frequency ◽  
Polar Plot ◽  
Wireless Applications ◽  
Microstrip Patch ◽  
Half Wavelength ◽  
Low Profile ◽  
Measured Length

In paper, a low profile microstrip patch antenna with rhombus model is designed at an running frequency at 2.4 GHz, 5.2 GHz. Microstrip Patch Antenna are suited to non-plane and plane areas, uncomplicated and effortless to design by used Printed Circuit Technology, it is a mechanically vigorous when it is ascended on rigid places and when the particular patch design model and dimension were selected, it has adjustable in view of resonance frequency, radiation design, impedance and polarization. High Frequency Structural Simulator (HFSS) is a definite component method solver for structures of EM (electromagnetic). The outcome values are discussed and analyzed in view of S11 (Return Loss), 3D Polar Plot, Radiation design and Gain. The value of S11 comes out to be -14.16dB for the designed antenna. The antenna measured length is nearly half wavelength in the dielectric, it is a highly censorious parameter, which governs the antenna resonant frequency. And the final values are simulated using High Frequency Structural Simulator

Design and Optimization of Rectangular Patch Antenna Based on FR4, Teflon and Ceramic Substrates

2019 ◽  
Vol 12 (4) ◽  
pp. 368-373
Author(s):  
Manickam Karthigai Pandian ◽  
Thangam Chinnadurai
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ceramic Substrates ◽  
Design And Optimization ◽  
High Frequency Structure Simulator ◽  
Microstrip Patch ◽  
Rectangular Patch ◽  
Low Profile ◽  
Low Profile Antennas ◽  
Communication Devices

Background: Modern communication devices are very much dependent on the operation of low profile antennas. The objective of this paper is to perform the design and simulation of a rectangular microstrip patch antenna at a resonant frequency of 9.5 GHz. Methods: Design of the antenna is given with various substrates like FR4, Teflon and Ceramic substrates at the desired frequency. For each substrate, the performance of the antenna is measured in terms of its return loss and Voltage Standing Wave Ratio (VSWR). Results: Ansoft High-Frequency Structure Simulator is used to simulate the antenna characteristics. Conclusion: Performance characteristics of the antenna with three different substrates are compared to identify the substrate that provides the accurate return loss and VSWR.

Optimized Design of a Microstrip Patch Antenna for Radar Applications

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
T. Mary Neebha ◽  
M. Nesasudha
Keyword(s):  
Patch Antenna ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Microstrip Antennas ◽  
Optimized Design ◽  
Simulation Design ◽  
Microstrip Patch ◽  
Low Profile ◽  
Radar Applications ◽  
Slotted Waveguide

Radars demand low profile and light weight antenna subsystems. Microstrip antennas possess these characteristics and serve as an alternative to the bulky and heavy weight reflector/slotted waveguide array antennas, thus an ideal choice for radars. Here, a single line fed microstrip antenna with pierced corners is designed. This antenna has improved parameters compared to the conventional square microstrip antenna. The main problem encountered is in designing the patch antenna with optimum values for various antenna parameters. In order to solve this problem, an alternative solution used is Artificial Neural Networks (ANN). The antenna is also optimized using Particle Swarm Optimization (PSO). The parameters considered in all the cases are return loss (S11) and VSWR which was designed using FEKO software. The designed antennas are found to radiate in the C-band, which covers frequencies in the range 5-8GHz, applicable in most of the modern radars. The simulation design is carried out using CADFEKO suite.

Design of a Compact High Gain Microstrip Patch Antenna for Tri-Band 5 G Wireless Communication

Frequenz ◽  
2019 ◽  
Vol 73 (1-2) ◽  
pp. 45-52 ◽  
Author(s):  
Ahmed Abdelaziz ◽  
Ehab K. I. Hamad
Keyword(s):  
Wireless Communication ◽  
Mobile Communications ◽  
Patch Antenna ◽  
Ground Plane ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
International Telecommunication Union ◽  
Microstrip Patch ◽  
Low Profile ◽  
Tan Δ

Abstract In this paper, a Tri-band microstrip-line-fed low profile microstrip patch antenna is proposed for future multi-band 5 G wireless communication applications. The proposed antenna is printed on a compact Rogers RT5880 substrate of dimensions 20×16.5×0.508 mm3 with relative permittivity, εr of 2.2 and loss tangent, tan δ of 0.0009. To improve return loss and bandwidth of the proposed antenna, a partial ground plane technique is employed. The proposed antenna operates at 10, 28, and 38 GHz, three of the selected frequencies which are allocated by the International Telecommunication Union (ITU) for 5 G mobile communications. To reduce interference between the 5 G system and other systems in the band, a pair of T-shaped slots is etched in the radiating patch to reject unwanted frequency bands. The proposed design provides a gain of 5.67 dB at 10 GHz, 9.33 dB at 28 GHz and 9.57 dB at 38 GHz; the radiation pattern is mostly directional. The proposed antenna is designed and optimized using two commercial 3D full-wave software, viz. CST microwave studio and Ansoft HFSS. A prototype of the designed antenna that was fabricated and showed good agreement between the actual measurements of S11 & VSWR and the simulation results using both software.

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