| Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2021-01-22
11:30 |
Fukuoka |
Online |
Evaluation of deep level by small signal equivalent circuit analysis of GaN HEMT
Takumi Nishimura, Masaya Tabuchi (Saga Univ.), Yutaro Yamaguchi, Tomohiro Otsuka, Shintaro Shinjo, Yutaro Yamanaka (Mitsubishi Electric), Toshiyuki Oishi (Saga Univ.) |
Although GaN HEMTs have been put to practical use as microwave high-power amplifiers, it is necessary to elucidate the e... [more] |
BCT2021-2
pp.5-8 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2021-01-22
13:00 |
Fukuoka |
Online |
Numerical Analysis of Perturbation Segment for Circular-Polarization Switching Microstrip Antenna Using Diodes
Reiya Ohshige, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2021-3
pp.9-12 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2021-01-22
13:20 |
Fukuoka |
Online |
Phase Noise Improvement of Positive Feedback Push-Push Oscillator Using Frequency Doubler Integrated in Injection Circuit
Koki Tokumaru, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
In this paper, a low phase noise positive feedback Push-Push oscillator using a frequency doubler integrated in an injec... [more] |
BCT2021-4
pp.13-16 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2021-01-22
13:40 |
Fukuoka |
Online |
Prototype Evaluation of a Continuously Tunable Polarization Agile Antenna Using Magic-T Type Variable Power Divider
Narito Morita, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2021-5
pp.17-20 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2021-01-22
14:30 |
Fukuoka |
Online |
Circuit design for excitation and switching of four resonance modes in polarization agile antenna
Ryo Moroishi, Eisuke Nishiyma, Ichihiko Toyoda (Saga Univ.) |
We have proposed a quad-polarization agile antenna loading diodes. This antenna can switch four boundary conditions depe... [more] |
BCT2021-7
pp.25-28 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2020-01-23
13:40 |
Kagoshima |
|
Basic Study of a new miniature rectenna integrating a rectifier in a antenna element for large-scale rectenna arrays
Kento Saito, Hiroshi Satow, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2020-3
pp.9-12 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2020-01-23
14:10 |
Kagoshima |
|
Design of a Frequency-Tunable Balun Using Wideband Planar Magic-T
Takuya Kitamura, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
We have reported a magic-T based planar balun and its application to a variable phase shift balun and variable attenuati... [more] |
BCT2020-4
pp.13-16 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2020-01-23
14:30 |
Kagoshima |
|
Design of a Low-Loss Planar Magic-T Employing Rectangle DGS
Hiroki Nakahara, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
In this paper，a low-loss planar magic-T employing a Defected Ground Structure (DGS) is proposed．The proposed magic-T con... [more] |
BCT2020-5
pp.17-20 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2020-01-24
09:15 |
Kagoshima |
|
Prototype Evaluation of a 90° - Hybrid Based Variable Power Divider for Beam Steering Array Antennas with Input Amplitude Control
Hiroki Uchiyama, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
We have proposed a beam steering antenna based on a monopulse system that integrates microstrip antenna elements and pla... [more] |
BCT2020-11
pp.39-42 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2020-01-24
09:35 |
Kagoshima |
|
Design of a Beam Steering Circularly Polarized Array Antenna with Input Amplitude Control
Daiki Iwamoto, Nishiyama Eisuke, Toyoda Ichihiko (Saga Univ.) |
This paper proposes a beam steering circularly polarized (CP) array antenna which employs input amplitude control beam-s... [more] |
BCT2020-12
pp.43-46 |
| BCT, KYUSHU, IEEE-AP-S-FUKUOKA |
2019-01-24
15:10 |
Fukuoka |
Kyushu Sangyo Univ. |
A Gunn diode model for planar Gunn oscillator design
Daichi Shimizu, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2019-6
pp.21-24 |
| BCT, KYUSHU, IEEE-AP-S-FUKUOKA |
2019-01-25
10:10 |
Fukuoka |
Kyushu Sangyo Univ. |
Prototype Evaluation of a Planar Rectenna Using Microstrip-Slot Cross Junction With Two Kinds of Output Voltages
Kenta Saisyo, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
We have proposed a differential rectenna having high conversion efficiency even at low power density. We also reported t... [more] |
BCT2019-12
pp.51-54 |
| BCT, KYUSHU, IEEE-AP-S-FUKUOKA |
2019-01-25
11:00 |
Fukuoka |
Kyushu Sangyo Univ. |
Basic Evaluation of a Planar Magic-T Based Balun and Its Application to Variable Phase Shift Balun
Takuya Kitamura, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
In this study, a novel magic-T based planar balun and its application to a variable phase shift balun are proposed. The ... [more] |
BCT2019-14
pp.59-62 |
| BCT, KYUSHU, IEEE-AP-S-FUKUOKA |
2019-01-25
11:20 |
Fukuoka |
Kyushu Sangyo Univ. |
Experimental Evaluation of a Magic-T Integrated Dual Circularly Polarized Array Antenna With Quadrature-fed Inclined Patches
Hiroki Uchiyama, Thet Paing Phyoe, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2019-15
pp.63-66 |
| BCT, KYUSHU |
2018-01-19
09:00 |
Nagasaki |
Nagasaki Univ. Unzen-E-Camllage-Kohryu-Center |
Characteristic Evaluation of a 12-Patch Active Array Antenna Integrated With a Gunn Oscillator and Polarization Modulators
Hiroki Ushiroda, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2018-12
pp.45-48 |
| BCT, KYUSHU |
2018-01-19
09:40 |
Nagasaki |
Nagasaki Univ. Unzen-E-Camllage-Kohryu-Center |
Basic Study of a Multi-Port Fourth-Harmonic Push-Push Oscillator Using a Ring Resonator
Naoaki Takeda, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
In this paper, a basic study of a multi-port fourth-harmonic Push-Push oscillator suitable for oscillator arrays is pres... [more] |
BCT2018-14
pp.53-56 |
| BCT, KYUSHU |
2018-01-19
10:00 |
Nagasaki |
Nagasaki Univ. Unzen-E-Camllage-Kohryu-Center |
Characteristic Evaluation of a 3-Port Push-Push Oscillator Using Slot-Ring Resonator
Takeshi Fukushima, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
Radar systems such as a collision avoidance system of cars have been widely used. In the systems, miniaturization and co... [more] |
BCT2018-15
pp.57-60 |
| BCT, KYUSHU |
2018-01-19
10:30 |
Nagasaki |
Nagasaki Univ. Unzen-E-Camllage-Kohryu-Center |
Experimental Stady on Performance Improvement of a DBM Integrated Circularly Polarized Microstrip Antenna
Takahiro Ino, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
Circularly polarized antennas based on a new principle using a double balanced multiplier are proposed to achieve wideba... [more] |
BCT2018-16
pp.61-64 |
| BCT, KYUSHU |
2017-01-19
14:30 |
Oita |
Oita Univ. (Oita City) |
Performance Variation Due to Feed Phase Error of a Beam Steering Antenna With Input Amplitude Control
Yuki Tanaka, Eisuke Nishiyama, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2017-5
pp.17-20 |
| BCT, KYUSHU |
2017-01-19
16:00 |
Oita |
Oita Univ. (Oita City) |
Nonlinear Characteristics of a DBM Integrated Circularly Polarized Microstrip Antenna
Takahiro Ino, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2017-9
pp.33-36 |