Coherent Power Combination in Highly Integrated Resonant Tunneling Diode Oscillators with Slot Antennas
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概要
- 論文の詳細を見る
We propose highly integrated array of resonant tunneling diode (RTD) oscillators and observed coherent power combination in this structure. Two InGaAs/AlAs RTD oscillators with slot antennas on the same InP wafer are arranged collinearly, and coupled with each other through a 5-μm-long metal–insulator–metal stub structure. Although the individual oscillation frequencies were 329 and 332 GHz, a single peak at 321 GHz was observed when the two oscillators were driven simultaneously. The individual output powers were 1.9 and 2.6 μW, while 5.1 μW in simultaneous operation which was larger than the summation of individual output. These results are attributed to the mutual injection locking and coherent power combination resulting in the improvement of directivity in array antenna. From these experimental results, high-power and high-density RTD oscillators are expected by extending this structure to several elements.
- Japan Society of Applied Physicsの論文
- 2007-12-25
著者
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Asada Masahiro
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Suzuki Safumi
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Suzuki Safumi
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-S9-3 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Asada Masahiro
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-S9-3 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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