Elliptical microstrip antenna for circularly polarized synthetic aperture radar

Baharuddin, Merna; Wissan, Victor; Sumantyo, Josaphat Tetuko Sri; Kuze, Hiroaki

doi:10.1016/j.aeue.2010.01.012

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…This feature is one reason why microstrip patch antennas have been utilized for space borne communication antenna and ISBN 978-602-19877-3-5 satellites [7,8]. However, as well known, a microstrip antenna can attain a narrow frequency bandwidth, especially axial ratio bandwidth generally in order of one-half percent at the expense of a low gain [9,10]. Some previous work has reported the enhancement of the axial ratio bandwidth of microstrip antenna [11].…”

Section: Introductionmentioning

confidence: 99%

A Synchronous Sub-Array Circularly Polarized Microstrip Antenna for Bisar Onboard Uav

Yohandri¹

2018

Preprint

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A circularly polarized microstrip antenna for bi-static SAR onboard UAV has been investigated. The both senseof the circular polarization left-hand circularly polarized (LHCP) and right-hand circularly polarized (RHCP) arecan be achieved on experimental and simulation. The 2x2 sub array antenna operated in 1.176 (L-band) withnovel proximity synchronous feed method has been designed, fabricated, and evaluated to show the characteristic of the antenna. The measured result give the axial ratio bandwidth (<3dB) of about 28 MHz (2%), whichconsistent with the simulated result of about 27 MHz (2%). These results satisfy the specification for our BiSARsystem installed onboard UAV.

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Section: Introductionmentioning

confidence: 99%

A Synchronous Sub-Array Circularly Polarized Microstrip Antenna for Bisar Onboard Uav

Yohandri¹

2018

Preprint

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“…As compared with conventional microwave antennas, a microstrip antenna has additional advantages such as a compact size, light weight, conformability to surfaces of substrates, low cost, and easier integration with other circuits and versatility [6]. In previous works, several single element CP antennas have been fabricated in MRSL [7][8][9]. For CP-SAR applications, an array configuration must be adopted to satisfy the requirement of the system.…”

Section: Introductionmentioning

confidence: 99%

Development of Circularly Polarized Array Antenna for Synthetic Aperture Radar Sensor Installed on Uav

Yohandri

Wissan²,

Firmansyah³

et al. 2011

PIER C

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We have developed an array antenna consisting of 12 elements of simple square-shaped, corner-truncated patches for circularly polarized synthetic aperture radar (CP-SAR) operated in the L-band. The corporate feed design concept is implemented by combining a split-T and a 3-way circular-sector-shape power divider to excite circularly polarized radiation. The fabricated antenna based on the simulation using moment method gives a good circular polarization at the center frequency of 1.27 GHz with an impedance bandwidth of 6.1% and 3-dB axial ratio bandwidth of 1.0%, satisfying the specification for our circularly polarized synthetic aperture radar intended for use onboard an unmanned aerial vehicle and a small satellite.

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“…Linearly polarized (LP) antennas were first used in SAR systems [4]. However, as the RF signal propagation in the troposphere is different from that in free-space as the refractive index varies with altitude, this phenomenon causes atmospheric refraction effects.…”

Section: Introductionmentioning

confidence: 99%

Wideband planar array antenna based on SCRLH-TL for airborne synthetic aperture radar application

Alibakhshikenari

Virdee

Limiti

2018

Journal of Electromagnetic Waves and Applications

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Elliptical microstrip antenna for circularly polarized synthetic aperture radar

Cited by 8 publications

References 11 publications

A Synchronous Sub-Array Circularly Polarized Microstrip Antenna for Bisar Onboard Uav

A Synchronous Sub-Array Circularly Polarized Microstrip Antenna for Bisar Onboard Uav

Development of Circularly Polarized Array Antenna for Synthetic Aperture Radar Sensor Installed on Uav

Wideband planar array antenna based on SCRLH-TL for airborne synthetic aperture radar application

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