Design of Microstrip Antenna Array with Suppressed Back Lobe

Silveira, E. S.; Nascimento, Daniel C.; Tinoco-S., Alexis F.; Pina, Marcus Vinicius Pera de

doi:10.1590/2179-10742017v16i2822

Cited by 6 publications

(1 citation statement)

References 10 publications

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“…Pozar, in his base work has proposed that the diffraction effects can influence the minor lobes in microstrip antennas [2]. It is very much essential that the front to back ratio has to be greater than 20dB for array antennas in communication systems [3].…”

Section: Introductionmentioning

confidence: 99%

A Novel Back Lobe Reduction Technique for Microstrip Antenna Array Using Partial Ground and DGS

Kumar¹,

Satyanarayana²,

Singh³

2019

IJIES

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In this communication, back lobe reduction in microstrip antenna array using partial ground and defected ground structure (DGS) is presented. An eight element rectangular microstrip patch antenna array is designed for Xband frequency of 9.1GHz, with a peak gain of 12.04dBi and back lobe level of -13.75dB. Using partial ground plane technique; the back lobe level is reduced to -18.28dB. Then, by placing defected ground structure (DGS) slots on the ground plane, the S 11 is further reduced by 7.65dB and back lobe level is reduced to -18.82dB. This microstrip antenna array with partial ground plane and DGS technique has a peak gain of 12.41dBi. By using this novel technique, the front to back ratio has improved from 19dB to 24.23dB. The Simulations are carried using High frequency structured simulator (HFSS) software and compared with measured results. A difference of 0.96dB is observed between simulated and measured back lobe level.

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Section: Introductionmentioning

confidence: 99%

A Novel Back Lobe Reduction Technique for Microstrip Antenna Array Using Partial Ground and DGS

Kumar¹,

Satyanarayana²,

Singh³

2019

IJIES

View full text Add to dashboard Cite

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Polarization reconfigurable microstrip phased array

Silveira

Fabiani

Pina

et al. 2018

AEU - International Journal of Electronics and Communications

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Directional microwave emission from femtosecond-laser illuminated linear arrays of superconducting rings

Bullard,

Frische,

Ebbing

et al. 2023

Sci Rep

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We examine the electromagnetic emission from two photo-illuminated linear arrays composed of inductively charged superconducting ring elements. The arrays are illuminated by an ultrafast infrared laser that triggers microwave broadband emission detected in the 1–26 GHz range. Based on constructive interference from the arrays a narrowing of the forward radiation lobe is observed with increasing element count and frequency demonstrating directed GHz emission. Results suggest that higher frequencies and a larger number of elements are achievable leading to a unique pulsed array emitter concept that can span frequencies from the microwave to the terahertz (THz) regime.

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Design of Microstrip Antenna Array with Suppressed Back Lobe

Cited by 6 publications

References 10 publications

A Novel Back Lobe Reduction Technique for Microstrip Antenna Array Using Partial Ground and DGS

A Novel Back Lobe Reduction Technique for Microstrip Antenna Array Using Partial Ground and DGS

Polarization reconfigurable microstrip phased array

Directional microwave emission from femtosecond-laser illuminated linear arrays of superconducting rings

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