Possibilities of Large Voltage Swing Hard-Type Oscillators Based on Series-Connected Resonant Tunneling Diodes

Koichi MAEZAWA; Masayuki MORI

doi:10.1587/transele.E101.C.305

Possibilities of Large Voltage Swing Hard-Type Oscillators Based on Series-Connected Resonant Tunneling Diodes

Koichi MAEZAWA, Masayuki MORI

Full Text Views

0

Share
Cite this

Summary :

Hard-type oscillators for ultrahigh frequency applications were proposed based on resonant tunneling diodes (RTDs) and a HEMT trigger circuit. The hard-type oscillators initiate oscillation only after external excitation. This is advantageous for suppressing the spurious oscillation in the bias line, which is one of the most significant problems in the RTD oscillators. We first investigated a series-connected circuit of a resistor and an RTD for constructing a hard-type oscillator. We carried out circuit simulation using the practical device parameters. It was demonstrated that the stable oscillation can be obtained for such oscillators. Next, we proposed to use series-connected RTDs for the gain block of the hard-type oscillators. The series circuits of RTDs show the negative differential resistance in very narrow regions, or no regions at all, which makes impossible to use such circuits for the conventional soft-type oscillators. However, with the trigger circuit, they can be used for hard-type oscillators. We confirmed the oscillation and the bias stability of these oscillators, and also demonstrated that the voltage swing can be easily increased by increasing the number of RTDs connected in series. This is promising method to overcome the power restriction of the RTD oscillators.

Publication: IEICE TRANSACTIONS on Electronics Vol.E101-C No.5 pp.305-310

Publication Date: 2018/05/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E101.C.305

Type of Manuscript: Special Section PAPER (Special Section on Fundamentals and Applications of Advanced Semiconductor Devices)

Category

Authors

Koichi MAEZAWA
University of Toyama
Masayuki MORI
University of Toyama

Keyword

resonant tunneling diode, hard-type oscillator, HEMT, spurious oscillation, voltage swing

Cite this

Copy

Koichi MAEZAWA, Masayuki MORI, "Possibilities of Large Voltage Swing Hard-Type Oscillators Based on Series-Connected Resonant Tunneling Diodes" in IEICE TRANSACTIONS on Electronics, vol. E101-C, no. 5, pp. 305-310, May 2018, doi: 10.1587/transele.E101.C.305.
Abstract: Hard-type oscillators for ultrahigh frequency applications were proposed based on resonant tunneling diodes (RTDs) and a HEMT trigger circuit. The hard-type oscillators initiate oscillation only after external excitation. This is advantageous for suppressing the spurious oscillation in the bias line, which is one of the most significant problems in the RTD oscillators. We first investigated a series-connected circuit of a resistor and an RTD for constructing a hard-type oscillator. We carried out circuit simulation using the practical device parameters. It was demonstrated that the stable oscillation can be obtained for such oscillators. Next, we proposed to use series-connected RTDs for the gain block of the hard-type oscillators. The series circuits of RTDs show the negative differential resistance in very narrow regions, or no regions at all, which makes impossible to use such circuits for the conventional soft-type oscillators. However, with the trigger circuit, they can be used for hard-type oscillators. We confirmed the oscillation and the bias stability of these oscillators, and also demonstrated that the voltage swing can be easily increased by increasing the number of RTDs connected in series. This is promising method to overcome the power restriction of the RTD oscillators.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E101.C.305/_p

Copy

@ARTICLE{e101-c_5_305,
author={Koichi MAEZAWA, Masayuki MORI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Possibilities of Large Voltage Swing Hard-Type Oscillators Based on Series-Connected Resonant Tunneling Diodes},
year={2018},
volume={E101-C},
number={5},
pages={305-310},
abstract={Hard-type oscillators for ultrahigh frequency applications were proposed based on resonant tunneling diodes (RTDs) and a HEMT trigger circuit. The hard-type oscillators initiate oscillation only after external excitation. This is advantageous for suppressing the spurious oscillation in the bias line, which is one of the most significant problems in the RTD oscillators. We first investigated a series-connected circuit of a resistor and an RTD for constructing a hard-type oscillator. We carried out circuit simulation using the practical device parameters. It was demonstrated that the stable oscillation can be obtained for such oscillators. Next, we proposed to use series-connected RTDs for the gain block of the hard-type oscillators. The series circuits of RTDs show the negative differential resistance in very narrow regions, or no regions at all, which makes impossible to use such circuits for the conventional soft-type oscillators. However, with the trigger circuit, they can be used for hard-type oscillators. We confirmed the oscillation and the bias stability of these oscillators, and also demonstrated that the voltage swing can be easily increased by increasing the number of RTDs connected in series. This is promising method to overcome the power restriction of the RTD oscillators.},
keywords={},
doi={10.1587/transele.E101.C.305},
ISSN={1745-1353},
month={May},}

Copy

TY - JOUR
TI - Possibilities of Large Voltage Swing Hard-Type Oscillators Based on Series-Connected Resonant Tunneling Diodes
T2 - IEICE TRANSACTIONS on Electronics
SP - 305
EP - 310
AU - Koichi MAEZAWA
AU - Masayuki MORI
PY - 2018
DO - 10.1587/transele.E101.C.305
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E101-C
IS - 5
JA - IEICE TRANSACTIONS on Electronics
Y1 - May 2018
AB - Hard-type oscillators for ultrahigh frequency applications were proposed based on resonant tunneling diodes (RTDs) and a HEMT trigger circuit. The hard-type oscillators initiate oscillation only after external excitation. This is advantageous for suppressing the spurious oscillation in the bias line, which is one of the most significant problems in the RTD oscillators. We first investigated a series-connected circuit of a resistor and an RTD for constructing a hard-type oscillator. We carried out circuit simulation using the practical device parameters. It was demonstrated that the stable oscillation can be obtained for such oscillators. Next, we proposed to use series-connected RTDs for the gain block of the hard-type oscillators. The series circuits of RTDs show the negative differential resistance in very narrow regions, or no regions at all, which makes impossible to use such circuits for the conventional soft-type oscillators. However, with the trigger circuit, they can be used for hard-type oscillators. We confirmed the oscillation and the bias stability of these oscillators, and also demonstrated that the voltage swing can be easily increased by increasing the number of RTDs connected in series. This is promising method to overcome the power restriction of the RTD oscillators.
ER -