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Zainal Abidin
Seminar Nasional Teknologi Informasi Politeknik Negeri Malang
Computer Science & IT Control & Systems Engineering

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PERANCANGAN BPF CAUER-CHEBYSHEV PITA SEMPIT UNTUK APLIKASI SAR BERBASIS FMCW Zainal Abidin; Achmad Munir
SENTIA 2016 Vol 8, No 2 (2016)
Publisher : SENTIA 2016

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Abstract

It is known that synthetic aperture radar (SAR) was commonly used to obtain a high image resolution of radar detection. Therefore, supporting devices for SAR are almost required. This research is proposed to design bandpass filter (BPF) Cauer-Chebyshev for SAR application. Signal types and techniques of signal generation are important things in the design of the filter. Here, frequency modulated continuous wave (FMCW) method with narrowband response is used as a modulation technique for SAR. Whilst, wideband response was rarely used due to a great attenuation affected by atmosphere. In the design, it shows that the filter is made from lumped elements with Cauer-Chebyshev type of order 5 with the passband area of 25-35MHz. The result demonsrates that the filter has the minimum S11value of -0.274dB at the passband area of of 25-35MHz and the maximum S21 value with ripple of -12.141dB at the passband area of of 25-35MHz. It indicates that the value of S21 at the passband area of of 25-35MHz is almost constant. In adiition, it shows that the filter has a transition area quite narrow but with high complexity on its circuitry.
PENGEMBANGAN BANDPASS FILTER KOMPOSIT PITA SANGAT LEBAR BERBASIS TEKNOLOGI MIKROSTRIP Achmad Munir; Ivan Pradibta; Zainal Abidin
SENTIA 2016 Vol 8, No 2 (2016)
Publisher : SENTIA 2016

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Abstract

This paper discusses the development of microstrip-based ultra-wideband (UWB) composite bandpass filter (BPF) with stubs. The BPF is compositely constructed from the step impedance lowpass filter (LPF) and the optimum distributed highpass filter (HPF). Prior to the realization, the performances of filter and its physical dimension are investigated numerically to obtain the optimum design. The composite BPF is deployed on an FR4 Epoxy dielectric substrate with the thickness of 0.8mm and the dimension of 30mm x 25mm. From the measurement result, it shows that the realized UWB composite BPF has -3dB bandwidth response of 9.33GHz ranges from the frequency of 1.67GHz to 11GHz.
Co-Authors Achmad Munir Ivan Pradibta