Design of the X-Band Frequency Source Based on the Multiplying Technology

2014 ◽  
Vol 707 ◽  
pp. 425-428
Author(s):  
Shuang Zhao ◽  
Yun Qing Liu
Keyword(s):  
Phase Noise ◽  
Frequency Doubling ◽  
Electronic System ◽  
Band Frequency ◽  
Adjacent Channel Interference ◽  
Frequency Doubling Technology ◽  
X Band ◽  
Noise Frequency ◽  
Phase Noise Performance ◽  
Frequency Source

The phase noise performance of frequency source has a direct impact on the target measurement such as the adjacent channel interference of the electronic system, the transmission quality of information, the resolution of radar. In this paper, we achieved an X-band high stability, low phase noise frequency source which based on the DDS combination with frequency doubling technology. The test result shows that when the output of the frequency source is at 8.544GHz, the phase nosie is-103.58dBc/Hz at 1kHz and-101.94dBc/Hz at 10kHz.

Phase noise performance stabilization of PLL system under dynamic vibration condition for airborne applications

2020 ◽  
pp. 1-9
Author(s):  
Vipin Kumar ◽  
R. Sivakumar ◽  
C. S. Jayasheela ◽  
Mahadev Sarkar ◽  
Shailendra Singh
Keyword(s):  
Phase Noise ◽  
Random Vibration ◽  
Spatial Location ◽  
Vital Role ◽  
Noise Performance ◽  
Vibration Condition ◽  
X Band ◽  
Phase Noise Performance ◽  
Frequency Source ◽  
Covering Design

Abstract The purpose of this paper is to disclose improved crystal based frequency source system covering design techniques and experimental methodologies for the stabilization of phase noise performance of X-band phase-locked loop (PLL) at 10.6 GHz. Phase noise performance of PLL-based unit under test (UUT) is prone to disturbance occurred in random vibration profile frequency spectrum. UUT self-resonance plays vital role in occurrence of disturbance in random vibration profile. The stabilization of phase noise performance during dynamic (random) vibration condition is achieved by following methodologies, i.e. vibration-isolator compensation techniques, purification tactic for reference crystal of PLL, and spatial location analysis for finding out mounting position of reference crystal. Spatial analysis helps to filter out UUT self-resonance frequency from random vibration spectrum which leads to reduction of frequency resonance pickups during random vibration testing.

Design of X-Band Frequency Source Based on PLL Technology

2014 ◽  
Vol 1046 ◽  
pp. 285-288
Author(s):  
Shuang Zhao ◽  
Le Le Zhang
Keyword(s):  
Phase Noise ◽  
Frequency Synthesizer ◽  
Satellite Communications ◽  
Frequency Multiplier ◽  
Test Results ◽  
Circuit Realization ◽  
Band Frequency ◽  
X Band ◽  
Frequency Source ◽  
Low Phase Noise

The frequency synthesizer is an important part of modern communication system. It is widely used in digital communications, satellite communications, remote telemetry, radar, navigation and other fields. For frequency source with low phase noise and low spurious, this paper gives hardware architecture and implementation method circuit realization of the X-band frequency source which use phase locked and frequency multiplier theory. Its main targets are tested. The test results show that the performance of the frequency synthesizer is preferably with lower spurious level and phase noise.

Design of a Fast-Sweeping C-X band Frequency Source Based on DDS and Frequency Multiplying Chain

2021 ◽  
Author(s):  
Yuwei Zhang ◽  
Awei Zhang ◽  
Chenkai He ◽  
Chunya Hou ◽  
Jinping Xu
Keyword(s):  
Band Frequency ◽  
X Band ◽  
Fast Sweeping ◽  
Frequency Source

scholarly journals Low Phase Noise Frequency Synthesis for Ultrastable $X$ -Band Oscillators

2017 ◽  
Vol 27 (4) ◽  
pp. 392-394 ◽  
Author(s):  
Waddah A. Al-Ashwal ◽  
Ashby Hilton ◽  
Andre N. Luiten ◽  
John G. Hartnett
Keyword(s):  
Phase Noise ◽  
Frequency Synthesis ◽  
X Band ◽  
Noise Frequency ◽  
Low Phase Noise

Design of the High-Speed X-Band Frequency Hopping Source

2014 ◽  
Vol 662 ◽  
pp. 231-234
Author(s):  
Shuang Zhao ◽  
Dian Ren Chen
Keyword(s):  
High Speed ◽  
Frequency Hopping ◽  
Frequency Stability ◽  
Band Frequency ◽  
X Band ◽  
Frequency Source ◽  
The Stability ◽  
Stability And Accuracy ◽  
Low Phase Noise ◽  
Communication Equipment

In modern communication system, the spacing of channel becomes ever more finely. For communication equipment, it has made ​​high demands on the stability and accuracy of the frequency. Based on DDS technology, combined with the multiplier circuit, we developed a high-speed X-band frequency hopping source. Experimental results show that this frequency source is with excellent frequency stability and low phase noise.

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