Jurnal Elektronika dan Telekomunikasi
Vol 18, No 2 (2018)

Fractional-N PLL Synthesizer for FMCW Signal Generator with Dual-Mode Modulation Pattern

Indrawijaya, R. (Unknown)
Sariningrum, R. (Unknown)
Sukoco, B. Edi (Unknown)
Muliawandana, D. (Unknown)



Article Info

Publish Date
28 Dec 2018

Abstract

Radar signal generator is a critical component in radar system as it determines the best achievable resolution. Single chip Fractional-N PLL synthesizer with built-in VCO and sweep modulator become more popular as Frequency Modulated Continuous Wave (FMCW) signal generator due to the simplicity and overall cost reduction. This paper presents a realization process and experimental result of dual-mode modulation pattern FMCW signal generator using HMC769LP6CE PLL. The PLL is controlled by ATMega328 microcontroller and Altera EPM240T100C5 CPLD to operate in two difference mode: 1-way sweep mode and 2-way sweep mode. The PLL is programmed with four different sweep bandwidth from 6.75–54 MHz for different range and resolution radar purpose. The performance of FMCW signal generator is measured using the output of passband signal spectrum. The experimental results indicate that the PLL-VCO with 2-way sweep mode has clearer frequency passband compared to 1-way sweep mode.

Copyrights © 2018






Journal Info

Abbrev

jet

Publisher

Subject

Electrical & Electronics Engineering Engineering

Description

Jurnal Elektronika dan Telekomunikasi (JET) is an open access, a peer-reviewed journal published by Research Center for Electronics and Telecommunication - Indonesian Institute of Sciences. We publish original research papers, review articles and case studies on the latest research and developments ...