Jpn. J. Appl. Phys. 47 (2008) pp. 2833-2837 |Previous Article| |Next Article| |Table of Contents|
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Ultrashort Pulse Generators Using Resonant Tunneling Diodes and Their Integration with Antennas on Ceramic Substrates
Naoki Kamegai,
Shigeru Kishimoto,
Koichi Maezawa1,
Takashi Mizutani,
Hiroya Andoh2,
Kazuhiro Akamatsu3, and
Hirofumi Nakata3
Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
1Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
2Toyota National College of Technology, 2-1 Eisei-cho, Toyota, Aichi 471-8525, Japan
3Nippon Mining & Metals Co., Ltd., 3-17-35 Niizo-Minami, Toda, Saitama 335-8502, Japan
(Received October 1, 2007; accepted December 17, 2007; published online April 25, 2008)
Ultrashort pulse generations were demonstrated on two types of resonant tunneling diode (RTD) pulse generators. The circuits were fabricated with InGaAs/AlAs RTDs on an InP substrate. One of the circuits was a simple resistor-RTD series circuit, and the other was a circuit consisting of an RTD pair. The full widths at half maximum (FWHMs) of the pulses were about 10 ps. Good symmetric opposite polarity peaks were obtained for the resistor-RTD pair circuit, while the peaks for the resistor-RTD series circuit were asymmetric. Moreover, the simple resistor-RTD-type pulse generator was integrated with antennas on ceramic substrates. A sending and receiving experiment showed that a 70 GHz wave packet was transmitted between antennas.
URL:
http://jjap.jsap.jp/link?JJAP/47/2833/
DOI: 10.1143/JJAP.47.2833
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