A Ring-VCO-Based Injection-Locked Frequency Multiplier with Novel Pulse Generation Technique in 65 nm CMOS

作者：Lee Sang yeop^*; Kanemaru Norifumi; Ikeda Sho; Kamimura Tatsuya; Tanoi Satoru; Ito Hiroyuki; Ishihara Noboru; Masu Kazuya

来源：IEICE - Transactions on Electronics, 2012, E95C(10): 1589-1597.

DOI：10.1587/transele.E95.C.1589

• injection locked frequency multiplier
• ring VCO
• pulse injection
• CMOS

This paper proposes a low-phase-noise ring-VCO-based frequency multiplier with a new subharmonic direct injection locking technique that only uses a time-delay cell and four MOS transistors. Since the proposed technique behaves as an exclusive OR and can double the reference signal frequency, it increases phase correction points and achieves low phase noise characteristic across the wide output frequency range. The frequency multiplier was fabricated by using 65 nm Si CMOS process. Measured 1-MHz-offset phase noise at 6.34 GHz with reference signals of 528 MHz was -119 dBc/Hz.

• 出版日期2012-10