A 15-GHz Direct Optical Injection-Locked MMIC Oscillator Using Photosensitive HBTs (Special Issue on Optomicrowave Techniques and Their Applications)

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概要

• 論文の詳細を見る

• This paper presents a 15-GHz MMIC direct optical injection-locked oscillator (MMIC OILO) with very-wide locking range that uses photosensitive HBTs. The MMIC OILO consists of an HBT and a positive feedback circuit including a Q-damping variable resistor. By utilizing the high-f_T/fltmaxgt photosensitive HBT, we realize both high-frequency oscillation of 15 GHz and increased equivalent electrical injection power. In addition to increasing the RF injection power, the Q-damping variable resistor effectively reduces the quality-factor of the oscillator, thus realizing the very wide locking range (f) of 567 MHz (f/fosc〜3.8%). The locking bandwidth of 3.8% is over l0 times wider than that of any yet reported microwave direct OILO. Furthermore, it is shown that the MMIC OILO can also work as a high-gain Q-variable filter photoreceiver by increasing a Q-damping variable resistance over the self-oscillation suppression range .

• 一般社団法人電子情報通信学会の論文
• 1996-01-25

著者

• Kamitsuna Hideki

  Ntt Wireless Systems Laboratories

関連論文

• A 15-GHz Direct Optical Injection-Locked MMIC Oscillator Using Photosensitive HBTs (Special Issue on Optomicrowave Techniques and Their Applications)

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