scholarly journals Planar Antennas with Enhanced Bandwidth and Radiation Characteristics

10.5772/66381 ◽  
2017 ◽  
Author(s):  
Mohammad Alibakhshikenari ◽  
Mohammad Naser-Moghadasi ◽  
Ramazan Ali Sadeghzadeh ◽  
Bal Singh Virdee ◽  
Ernesto Limiti
Keyword(s):  
Planar Antennas ◽  
Radiation Characteristics

Bandwidth improvement of planar antennas using a single-layer metamaterial substrate for X-band application

2020 ◽  
Vol 12 (9) ◽  
pp. 906-914
Author(s):  
O. Borazjani ◽  
M. Naser-Moghadasi ◽  
J. Rashed-Mohassel ◽  
R. A. Sadeghzadeh
Keyword(s):  
Microstrip Antenna ◽  
Single Layer ◽  
Dual Band ◽  
Planar Antennas ◽  
Radiation Characteristics ◽  
Dual Band Antenna ◽  
X Band ◽  
Field Radiation ◽  
Metallic Ring ◽  
Good Agreement

AbstractTo prevent far-field radiation characteristics degradation while increasing bandwidth, an attempt has been made to design and fabricate a microstrip antenna. An electromagnetic band gap (EBG) structure, including a layer of a metallic ring on a layer of Rogers 4003C substrate, is used. For a better design, a patch antenna with and without the EBG substrate has been simulated. The results show that the bandwidth can be improved up to 1.6 GHz in X-band by adding the EBG substrate. Furthermore, using this structure, a dual-band antenna was obtained as well. Finally, to validate the simulation results, a comparison has been done between simulation data and experimental results which demonstrate good agreement.

scholarly journals A Novel Low Profile Dual-Frequency Shorted Patch Antenna

2020 ◽  
Vol 8 (5) ◽  
pp. 2469-2472
Keyword(s):  
Patch Antenna ◽  
Frequency Ratio ◽  
Single Layer ◽  
Patch Antennas ◽  
Dual Frequency ◽  
Planar Antennas ◽  
Radiation Characteristics ◽  
Small Frequency ◽  
Large Bandwidth ◽  
Low Profile

Dual-frequency planar antennas can substitute large bandwidth patch antennas, where there is a requirement for large bandwidth to cover two separate transmit receive bands. In this paper a novel single-feed, single layer, double-band, compact short loaded patch antenna is studied theoretically and experimentally. Besides the compactness, this design provides, dual frequency operation with a small frequency ratio of 1.3 between the two resonant bands. Various radiation characteristics are simulated as well as experimentally studied and good concurrence is observed between the simulated and measured results

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