Performance of Microstrip Antenna Arrays using Patch Type Electromagnetic Band Gap Structures

London Journal of Engineering Research
Volume | Issue | Compilation
Authored by K. Prahlada Rao , Vani R.M, P.V. Hunagund
Classification: NA
Keywords: corporate feeding technique; electromagnetic band gap structure; gain; microstrip antenna array; return loss.
Language: English

The paper explains the improvement in the performance of microstrip antenna arrays using fork shape patch type electromagnetic band gap structure. The two element modified microstrip antenna array is giving enhanced gain and bandwidth equal to 22.72 dB and 156.4 % compared to 5.069 dB and 2.35 % of two element conventional microstrip antenna array. The four element modified microstrip antenna array is producing increased gain and bandwidth equal to 26.92 dB and 182.3 % compared to 6.81 dB and 4.89 % of four element conventional microstrip antenna array. The eight element modified microstrip antenna array is producing higher gain and bandwidth equal to 31.31 dB and 211.2 % compared to 7.44 dB and 4.98 % of eight element conventional microstrip antenna array. All the modified antenna arrays are showing good reduction in mutual coupling and appreciable radiation characteristics. Corporate feeding technique is employed to feed the microstrip antenna arrays. The antenna arrays are designed using Mentor Graphics IE3D software.

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