| Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2022-01-21
11:20 |
Online |
Online |
Experimental Study on Phase Noise Improvement of 2nd-Harmonic Feedback Oscillator Using Active Ring Resonator
Reou Kikuchi, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
In this study, we propose a low phase noise 2nd-harmonic feedback oscillator. The proposed oscillator integrates an acti... [more] |
BCT2022-2
pp.5-8 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2022-01-21
11:40 |
Online |
Online |
Experimental Study on Array Spacing for Large-Scale Rectenna Arrays Using Yagi-Uda Antennas
Shota Egashira, Eisuke NIshiyama, Ichihiko Toyoda (Saga Univ.) |
[more] |
BCT2022-3
pp.9-12 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2022-01-21
14:10 |
Online |
Online |
Design of Dual-Beam Dual Circularly Polarized Microstrip Antenna Employing Slot-Coupling Directional Coupler Integrated Feeding Circuit
Daiki Iwamoto, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
This paper proposes a dual-beam dual circularly polarized (CP) microstrip antenna that has a CP switching function in tw... [more] |
BCT2022-7
pp.25-28 |
| BCT, KYUSHU, IEEE-BT, IEEE-AP-S-FUKUOKA |
2022-01-21
14:50 |
Online |
Online |
Bandwidth Improvement of Planar Magic-T Consisting of Microstrip Lines and Coplanar Stripline
Hiroki Nakahara, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
This paper proposes a new magic-T structure to improve the bandwidth of the planar magic-T consisting of microstrip line... [more] |
BCT2022-9
pp.33-36 |
| 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 |