Frequency-locked GaAs/AlAs superlattice oscillator for tunable narrowband microwave generation

被引：1
|
作者：
Hofbeck, K [1 ]
Schomburg, E [1 ]
Grenzer, J [1 ]
Renk, KF [1 ]
Pavel'ev, DG [1 ]
Koschurinov, Y [1 ]
Melzer, B [1 ]
Ivanov, S [1 ]
Kop'ev, PS [1 ]
机构：
[1] Univ Regensburg, Inst Angew Phys, D-93053 Regensburg, Germany
来源：
IEEE MICROWAVE AND GUIDED WAVE LETTERS | 1998年 / 8卷 / 12期
关键词：
locked oscillators; microwave oscillators; semiconductor superlattices;
D O I：
10.1109/75.746764
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We observed frequency locking of a wide-miniband GaAs/AlAs superlattice oscillator. The oscillator showed a free self-sustained current oscillation giving rise to microwave generation (power 100 mu W) at a natural frequency (near 5 GHz) and ultraharmonics. A narrowband driving field locked the oscillator and caused a drastic narrowing (from 10(6) Hz to less than 10 Hz) of the halfwidths of the microwave lines, now centered at the driving frequency and its harmonics; at a driving power of 10 mu W me obtained a locking range of 1% around the natural frequency, Our experiment, performed with a superlattice integrated in a planar microwave circuit, shows that a locked superlattice oscillator is suitable for tunable narrowband generation of high-frequency radiation.
引用
收藏
页码：427 / 429
页数：3
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