An L-Band Low Phase Noise Evanescent-Mode Cavity-Based Frequency Synthesizer

作者：Wu Yu Chen^*; Abu Khater Mohammad; Peroulis Dimitrios

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2018, 65(7): 2161-2168.

DOI：10.1109/TCSI.2017.2772872

• High-Q
• frequency synthesizers
• evanescent-mode cavity resonators
• piezoelectric actuators
• voltage-controlled oscillators (VCO)
• phase-locked loops (PLL)

In this paper, an L-band low phase noise evanescent-mode (EVA) cavity-based frequency synthesizer is developed, implemented, and experimentally validated. The oscillator is integrated on the substrate of a high-Q (Q(u) >= 430) EVA resonator board to reduce parasitics in the circuit. A piezoelectric actuator is used as a tuner. A phase-locked loop is used to control the output frequency. The frequency tuning range is from 1000 to 1700 MHz (1.7:1). The circuit achieves a phase noise as low as -94 dBc/Hz at 10-kHz offset, -122 dBc/Hz at 100-kHz offset, and -146 dBc/Hz at 1-MHz offset. The RMS jitter of the system is 267 fs at 1000 MHz. The frequency synthesizer consumes 64.3 mW without the active loop filter, which consumes 200 mW.

• 出版日期2018-7