Phase noise of a resonant-tunneling relaxation oscillator

被引：16

作者：

Verghese, S ^{[1
]}

Parker, CD ^{[1
]}

Brown, ER ^{[1
]}

机构：

[1] MIT, Lincoln Lab, Lexington, MA 02173 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 20期

关键词：

D O I：

10.1063/1.121414

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experimental results are presented for the phase noise of a relaxation oscillator consisting of a resonant-tunneling diode in series connection with a transmission line, one end of which is shorted. Unlike constant-wave negative-resistance oscillators, the resonant-tunneling relaxation oscillator (RTRO) emits a sequence of sharp current pulses that are mode locked to the fundamental mode of the cavity formed by the short-circuited transmission line. The phase noise in the RTRO was investigated with and without injection locking by a weak sinusoidal source. Injection-locking gain of 51 dB was measured for fundamental injection locking. Subharmonic injection locking was demonstrated out to the 12th subharmonic. Also, timing jitter as low as 200 fs was measured for an RTRO that emitted similar to 30 ps pulses at a repetition rate of 1.1 GHz. (C) 1998 American Institute of Physics. [S0003-6951(98)00120-X].

引用

页码：2550 / 2552

页数：3

共 12 条

[1] Resonant-tunneling transmission-line relaxation oscillator [J].