Ultrawide bandwidth enhancement by using sleeve‐probe feeding in rectangular microstrip antennas

2019 ◽  
Vol 62 (1) ◽  
pp. 257-263
Author(s):  
Honglin Zhang ◽  
Shaowei Liao ◽  
Bin‐Jie Hu
Keyword(s):  
Microstrip Antennas ◽  
Bandwidth Enhancement

scholarly journals Designing Franklin’s Microstrip Antenna with Defected Ground Structure at MMwave Frequency

2021 ◽  
pp. 559-565
Author(s):  
Ahmad Firdausi ◽  
◽  
I Made Dian Wahyudi ◽  
Mudrik Alaydrus
Keyword(s):  
Microstrip Antenna ◽  
Data Access ◽  
Microstrip Antennas ◽  
Reflection Factor ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Ground Field ◽  
Bandwidth Enhancement ◽  
Ground Structure Method ◽  
Gain Enhancement

The development of telecommunication technology is very rapid at this time has entered into 4G technology. Soon, the 5G technology has a fast data access speed of at least 1 Gbps. To support 5G technology is carried out in-depth research, especially in 5G antennas. This study aims to increase the bandwidth of Franklin's five array microstrip antennas using the DGS (Defected Ground Structure) method for 5G antenna applications at an operating frequency of 28 GHz. The research was conducted by doing rectangular defects in the ground field. This research produced an enhanced bandwidth by 1.707 GHz from 1.196 GHz without DGS (Defected Ground Structure) to 2.9 GHz with DGS (Defected Ground Structure). It means a bandwidth enhancement of 142.47%. At the same time, the design achieved a gain enhancement of 141.7 %. Franklin's microstrip antenna output with DGS (Defected Ground Structure) method from the research simulation results are the bandwidth of 2.9 GHz, reflection factor of -52.95 dB, and Gain 11.80 dB. In comparison, the results of antenna measurements that have been fabricated produce bandwidth of 2 GHz, reflection factor -27.72 dB on frequency 26.6 GHz. The deviation between the simulation and measurement may result in inaccuracies during the fabrication process.

Investigations on the Microstripline-Fed Wide-Slot Antennas for Wideband Applications

2019 ◽  
pp. 56-102
Author(s):  
Krishnendu Chattopadhyay ◽  
Sekhar Ranjan Bhadra Chaudhuri
Keyword(s):  
Experimental Studies ◽  
Microstrip Antennas ◽  
Magnetic Surface ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Dual Frequency ◽  
Slot Antennas ◽  
Available Bandwidth ◽  
Bandwidth Enhancement ◽  
Radiation Properties

Microstrip patch antennas are printed antennas that find suitability because they are lightweight, low volume, thin in profile, dual frequency, and dual polarization operation, and compatible with MMIC. The objective of chapter is to exhibit the investigations on the bandwidth enhancement of microstrip antennas with special reference to microstrip-line-fed wide-slot antennas. Performances are realized and validated through experimental studies on the impedance properties by VNA and radiation properties by pattern measurement setup. An innovative method for the design of hexagonal wide-slot antenna has been proposed considering it as an equivalent magnetic surface of monopole antenna. Impedance bandwidth of the above slot antenna is enhanced through various tuning stubs. In case of forklike tuning stub, the obtained bandwidth is about 900MHz, for hexagonal stub the available bandwidth is 1751MHz. Further improvement in bandwidth is proposed through rotation of hexagonal wide slot, results in wide bandwidth of 5165 MHz covering all the WLAN and WiMAX applications.

Bandwidth enhancement using gap-coupled hexagonal microstrip antennas in L band

2013 ◽  
Vol 55 (11) ◽  
pp. 2703-2709
Author(s):  
Ritu Rashmi ◽  
Kamla Prasan Ray ◽  
Sidhartha P. Duttagupta
Keyword(s):  
Microstrip Antennas ◽  
Bandwidth Enhancement ◽  
L Band

Bandwidth Enhancement of Microstrip Antennas with Metamaterial Bilayered Substrates

2007 ◽  
Vol 21 (15) ◽  
pp. 2321-2330 ◽  
Author(s):  
R. Yang ◽  
Y. Xie ◽  
D. Li ◽  
J. Zhang ◽  
J. Jiang
Keyword(s):  
Microstrip Antennas ◽  
Bandwidth Enhancement

Bandwidth enhancement of microstrip antennas by staggering effect

2011 ◽  
Vol 53 (10) ◽  
pp. 2446-2447 ◽  
Author(s):  
K. Mandal ◽  
S. Sarkar ◽  
P. P. Sarkar
Keyword(s):  
Microstrip Antennas ◽  
Bandwidth Enhancement

scholarly journals Bandwidth Enhancement of Square Microstrip Antennas Using Dual Feed Line Techniques

2021 ◽  
pp. 60-65
Author(s):  
Syah Alam ◽  
◽  
Indra Surjati ◽  
Teguh x Teguh Firmansyah
Keyword(s):  
Radiation Pattern ◽  
Axial Ratio ◽  
Microstrip Antennas ◽  
Operating Frequency ◽  
Impedance Bandwidth ◽  
Bandwidth Enhancement ◽  
Bandwidth Optimization ◽  
Feed Line ◽  
Directional Radiation ◽  
Simulation Results

This study proposes a new design of wide bandwidth microstrip antennas using dual feed line techniques. To obtain the optimal impedance bandwidth (IBW) and Axial Ratio Bandwidth (ARBW), several iterations were performed by controlling the dimensions and length of the dual feed line. From the simulation results, the proposed antenna obtained IBW of 0.4GHz or 17% and ARBW of 0.38GHz or 15% at an operating frequency of 2.5 GHz. The gain of the proposed antenna was 5.73dB with a directional radiation pattern. The dual feedline technique successfully improved IBW up to 254.16% compared with the single feed technique. This study would be useful especially for bandwidth optimization of microstrip antennas.

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