Abstract
In this paper, we obtain the basic configuration of the left-hand circular polarization (LHCP) array two patches stack triangular truncated microstrip antenna. This construction use the basic corporate feed microstrip-line with modified lossless T-junction power divider on radiating patch for circularly polarized-synthetic aperture radar (CP-SAR) sensor embedded on airspace with compact, small, and simple configuration. The design of Circular Polarization (CP) is realized by truncating the whole three tips and adjusting the parameters of antenna at the resonant frequency, f=5.2 GHz. The results of characteristic performance and S-parameter for the LHCP array two patches stack antenna at the resonant frequency show successively about 7.24 dBic of gain, 1.99 dB of axial ratio (Ar), and -11.43 dB of S-parameter. Moreover, the impedance bandwidth and the 3 dB-Ar bandwidth of this antenna are around 560 MHz (10.77%) and 50 MHz (0.96%), respectively.
Highlights
One of an active sensor for the remote sensing application in the microwave band is synthetic aperture radar (SAR)
This paper presents the development of the left-hand circular polarization (LHCP) array two patches stack triangular truncated microstrip antenna
The numerical simulation of the triangular truncated array antenna are shown in Section 3, especially at the resonant frequency, f=5.2 GHz where this antenna as basic configuration embedded on aircraft for the application of circularly polarized-synthetic aperture radar (CP-SAR) sensor both Tx and Rx
Summary
One of an active sensor for the remote sensing application in the microwave band is synthetic aperture radar (SAR). An object or phenomenon can be observed by this application without touching it. SAR systems can operate at some different bands and polarizations. The most common band-frequency is C-band which has an approximately 5 cm wavelength. It is used on Radarsat and Envisat systems. S-band (λ 10 cm) and L-band (λ 20 cm) are common [1]. Because the wavelength is longer, it penetrates surfaces better. It is useful for sea ice, soil moisture, and vegetation applications where the surface penetration is desirable
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