scholarly journals A High Gain Microstrip Patch Array for 5 GHz WLAN Applications

2018 ◽  
Vol 7 (3) ◽  
pp. 93-98 ◽  
Author(s):  
B. W. Ngobese ◽  
P. Kumar
Keyword(s):  
Ground Plane ◽  
Local Area ◽  
Dielectric Substrate ◽  
High Gain ◽  
Transmission Line Model ◽  
Microstrip Patch ◽  
Model Equations ◽  
5 Ghz ◽  
Standard States ◽  
Good Agreement

This paper presents the design, fabrication and measurement of a high gain 4-elements linear patch array, which uses the corporate feed technique with inset for excitation resonating at 5.216 𝐺𝐻z.  is used as a dielectric substrate for the proposed array structure. The designed array is simulated and optimized by using CST microwave studio software. The element of the array is designed using the transmission-line model equations. The ground plane is made defective by incorporating slots and the reflective ground is utilized to enhance the gain of the array. The simulated and measured results for various parameters of the array are presented. The comparison between simulated and measured results show good agreement with little deviation. The optimized dimensions of the proposed design provides a maximum gain of 9.019 dB and a maximum directivity of 12.81 dBi. The antenna has been designed for the range  which is one of the ranges for  band for wireless local area networks (WLAN) applications as the  standard states.

scholarly journals Dual Band Patch Antenna Based on Letter Slotted DGS for 5G Sub-6GHz Application

2021 ◽  
Vol 2128 (1) ◽  
pp. 012008
Author(s):  
Mohamed Fathy Abo Sree ◽  
Mohamed Hassan Abd Elazeem ◽  
Wael Swelam
Keyword(s):  
Patch Antenna ◽  
Simulation Analysis ◽  
Surface Current ◽  
Dielectric Substrate ◽  
High Gain ◽  
Dual Band ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Microstrip Patch ◽  
Good Agreement

Abstract To design a multiband microstrip patch antenna, the Defected Ground Structure (DGS) technique is applied to add a disturbance effect in the surface current distribution and create a multi-resonance frequency. Furthermore, and in the aim to achieve a high gain, a high superstrate is added above the basic antenna design. The developed antenna is dedicated to the 5G sub 6GHz band application. The proposed antenna is based on RO5880 dielectric substrate of ɛ=2.2 and has an overall dimension of 77×70.11×1.6 mm3. The antenna operates at a sub 6GHz frequency range (at 4.53 to 4.97 GHz) and fits in 5G band application standard. Using CST Studio Suite Electromagnetics (EM) Solver, antenna’s performances are investigated; an average gain of 5 dB with acceptable radiation efficiency is obtained at the operating frequencies, suitable for sub-6GHz 5G application. The proposed antenna is fabricated, and experimental analysis is conducted using ROHDE & SCHWARZ ZVB20 network analyser, which shows a good agreement with the simulation analysis.

scholarly journals High Gain Superstrate Loaded Membrane Antenna Based on Substrate Integrated Waveguide Technology

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Hamsakutty Vettikalladi
Keyword(s):  
Patch Antenna ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Substrate Integrated Waveguide ◽  
Rectangular Slot ◽  
Microstrip Patch ◽  
Antenna Impedance ◽  
5 Ghz ◽  
Good Agreement

The design and the results of a single slot coupled substrate integrated waveguide (SIW) fed membrane antenna loaded with a superstrate layer are presented for 94 GHz communication system. The membrane antenna is designed using ANSYS HFSS and consists of 6 layers. The microstrip patch antenna (MPA) placed on the top pyralux substrate layer is excited by means of a longitudinal rectangular slot placed over the SIW structure in the bottom pyralux substrate. The simulated antenna impedance bandwidth is found to be 5 GHz (91.5–96.5 GHz) with a gain of 7 dBi. In order to improve the gain a superstrate layer is added above the membrane antenna. The maximum gain achieved is 14.4 dBi with an efficiency of 77.6% at 94 GHz. The results are verified using CST Microwave Studio and are found to be in good agreement.

Enhancement of the gain and bandwidth of the microstrip patch antenna with modified ground plane

2016 ◽  
Vol 9 (5) ◽  
pp. 1179-1184 ◽  
Author(s):  
Kalyan Mondal ◽  
Partha Pratim Sarkar
Keyword(s):  
Microstrip Antenna ◽  
Ground Plane ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Network Analyzer ◽  
Microstrip Patch ◽  
Optimum Selection ◽  
Peak Gain ◽  
Selection Of

In this work, microstrip antenna with W- and V-shaped radiating patches have been proposed. Here square- and circular-shaped modified ground planes have been designed by poly tetra fluoro ethylene (PTFE) substrate with dielectric constant 2.4. Broadband with high gain is obtained by optimum selection of radiating patch with modified ground plane. The ground planes are modified by loading a U-shaped slot. The simulated and measured results are compared. Considering −10 dB impedance bandwidth maximum frequency band of 6.97 GHz (3.04–10.01 GHz) with percentage bandwidth of 106.8% is achieved. The proposed antenna exhibits maximum peak gain of 5.1 dBi. The simulation and measurement have been done by Ansoft designer software and vector network analyzer.

Patch antennas utilizing semi-insulating SiC for monolithic integration of the antenna subsystem on a SiC chip

2014 ◽  
Vol 1693 ◽  
Author(s):  
Tutku Karacolak ◽  
Rooban V. K. G. Thirumalai ◽  
Erdem Topsakal ◽  
Yaroslav Koshka
Keyword(s):  
Silicon Carbide ◽  
Computer Simulations ◽  
Return Loss ◽  
Dielectric Substrate ◽  
Experimental Results ◽  
Patch Antennas ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Semiconductor Chip ◽  
Good Agreement

ABSTRACTSemi-insulating (SI) silicon carbide (SiC) was evaluated as a candidate material for dielectric substrate for patch antennas suitable for monolithic antenna integration on a SiC semiconductor chip. Computer simulations of the return loss were conducted to design microstrip patch antennas operating at 10 GHz. The antennas were fabricated using SI 4H-SiC substrates, with Ti-Pt-Au stacks for ground planes and patches. A good agreement between the experimental results and simulation was obtained. The radiation performance of the designed SiC based patch antennas was as good as that normally achieved from antennas fabricated using conventional RF materials such as FR4 and Rogers. The antennas had the gain around 2 dBi at 10 GHz, which is consistent with the conventional antennas of a similar size.

scholarly journals Analysis and design of a 3.5-GHz patch antenna for WiMAX applications

2014 ◽  
Vol 8 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Funda Cirik ◽  
Bahadir Süleyman Yildirim
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Three Dimensional ◽  
High Gain ◽  
Antenna Design ◽  
Patch Type ◽  
Plane Antenna ◽  
Analysis And Design ◽  
Microstrip Patch ◽  
Electromagnetic Simulations

A high-gain microstrip patch-type WiMAX antenna operating at 3.5 GHz has been designed with a parasitic radiator and a raised ground plane. Antenna design has been carried out through extensive three-dimensional electromagnetic simulations. The patch antenna itself provides a realized gain of about 3.6 dB at 3.5 GHz. When a parasitic radiator is placed on top of the patch antenna, the gain increases from about 3.6 dB to about 7.4 dB. The raised ground plane further enhances the gain by about 1.5 dB. Hence the overall gain improvement is about 5.3 dB without the need of a radio-frequency amplifier.

A printed wide-beamwidth circularly polarized antenna via two pairs of radiating slots placed in a square contour

2016 ◽  
Vol 9 (3) ◽  
pp. 649-656 ◽  
Author(s):  
Neng-Wu Liu ◽  
Lei Zhu ◽  
Wai-Wa Choi
Keyword(s):  
Ground Plane ◽  
Large Angle ◽  
Axial Ratio ◽  
Dielectric Substrate ◽  
Slot Antenna ◽  
Radiation Patterns ◽  
Circularly Polarized ◽  
Low Profile ◽  
Orthogonal Pairs ◽  
Good Agreement

A low-profile circularly polarized (CP) slot antenna to achieve a wide axial-ratio (AR) beamwidth is proposed in this paper. The radiating patch consists of two orthogonal pairs of parallel slots etched symmetrically onto a ground plane. Firstly, our theoretical study demonstrates that the CP radiation can be satisfactorily achieved at the broadside, when the vertical and horizontal paired-slots are excited in the same amplitude with 90° phase difference. Secondly, the principle of CP radiation of the proposed antenna on an infinite ground plane is described. Through analyzing the spacing between two parallel slots, the |Eθ| and |Eφ| radiation patterns can be made approximately identical with each other over a large angle range. As such, the slot antenna achieves a wide AR beamwidth. After that, the 3 dB AR beamwidth with respect to the size of a finite ground plane is investigated to constitute a practical CP antenna on a finite ground plane. In final, the proposed CP antenna with a 1–4 probe-to-microstrip feeding network is designed and fabricated on a finite ground plane of a dielectric substrate. Measured results are shown to be in good agreement with the simulated ones about the gain, reflection coefficient, AR bandwidth, and radiation patterns. Most importantly, a wide 3 dB AR beamwidth of 126° and low-profile property with the height of 0.036λ0 are achieved.

scholarly journals Design and Implementation of Frequency Reconfigurable Microstrip Patch

2019 ◽  
Vol 8 (3) ◽  
pp. 8826-8831
Keyword(s):  
Ground Plane ◽  
High Gain ◽  
Design And Implementation ◽  
Microstrip Patch ◽  
Paper Work ◽  
Reconfigurable Radio

In this paper, radio wire recurrence reconfiguration is finished utilizing a proficient method. Traditional radio wires work at a specific recurrence run henceforth it is intended for explicit application and we can't work it on different frequencies. This proposed radio wire is equipped for changing to two distinct frequencies of 2.4 GHz and 2.754 GHz. Stick diode MA4P274-1141T has been presented on the ground plane. Stick diode which can switch among two diverse recurrence groups. The anticipated recieving wire has been planned utilizing RT/Duroid substrate with a relative dielectric steady of 2.2, misfortune digression of 0.0009 and thickness of 1.575 mm. Contrasted with regular recieving wires, reconfigurable radio wires talked about in this paper work at two distinctive recurrence ranges and furthermore it improves the exhibition. In this paper a smaller recurrence reconfigurable microstrip fix recieving wire has been given less return misfortune and high gain in contrast and the customary one. HFSS programming is utilized for reenactment and examination

scholarly journals DEFECTED GROUND COPLANAR MULTI-BAND-PASS MICROSTRIP FILTER

2021 ◽  
Vol 9 (1) ◽  
pp. 64-68
Author(s):  
Reena Pant, Rakesh Kumar Maurya, Pradyot Kala
Keyword(s):  
Ground Plane ◽  
Inductive Coupling ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Microstrip Filter ◽  
Coupling Technique ◽  
Filter Performance ◽  
Band Pass ◽  
5 Ghz ◽  
Good Agreement

This paper presents a combination of an inductive coupling technique and coplanar ground plane microstrip filter. Here, inductive coupling technique is used to overcome the unwanted radiation loss generated by the gap between the co-planar ground plane and the transmission line which improves filter characteristics. A defected ground structure (DGS) is integrated with the proposed filter to achieve a tri-bandpass characteristic (1.85, 3.53, and 5 GHz) without hampering the filter performance. The experimental results of the proposed filter are found in good agreement with simulated results.

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