| dc.contributor.author | Jetwara Tangjit | en_US |
| dc.contributor.author | Kunnthphong Srisathit | en_US |
| dc.contributor.author | Komkrit Boonying | en_US |
| dc.date.accessioned | 2019-11-19T03:59:01Z | |
| dc.date.available | 2019-11-19T03:59:01Z | |
| dc.date.issued | 2018 | |
| dc.identifier.uri | http://repository.rmutr.ac.th/123456789/1173 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/1173 | |
| dc.description.abstract | This research is to study and design of X- band triple loop frequency synthesizer
for the satellite communication system. The internal frequency synthesizer consists of
three phase-locked loop circuits. The proposed frequency synthesizer can operate at
the frequency from 6.8 to 7.8 GHz having an adjustable frequency at a time with 100
kHz and output power with 10 dBm. Considering at the measured frequency of 7.33 GHz,
phase noises are -85 dBc, -111.66 dBc and 129.95dB at the offset frequency of 100kHz,
100kHz and 1MHz, respectively with 20Hz frequency deviation. The measured results
show that the proposed frequency synthesizer has low noise with an accurate frequency
deviation. | en_US |
| dc.language.iso | TH | en_US |
| dc.publisher | Rajamangala University Of Technology Rattanakosin | en_US |
| dc.subject | Frequency synthesizer | en_US |
| dc.subject | phase locked loop | en_US |
| dc.subject | voltage control oscillator | en_US |
| dc.title | Study and Design of X- Band Triple Loop Frequency Synthesizer for Satellite Communication System | en_US |
| dc.title.alternative | การศึกษาและออกแบบเครื่องสังเคราะห์ความถี่แบบสามลูปย่านความถี่เอ็กซ์แบนด์สำหรับระบบสื่อสารผ่านดาวเทียม | en_US |
| dc.type | Research | en_US |
