Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Tsukasa Yoneyama"'
Publikováno v:
IEEE Aerospace and Electronic Systems Magazine. 24:42-45
An FM-CW radar front-end was fabricated in an integrated manner at 60 GHz by using the NRD guide. The main emphasis was placed on compactness in size and high-precise operation in performance. The fabricated radar consists of an FM Gunn oscillator, a
Autor:
Tsukasa Yoneyama
Publikováno v:
IEICE Transactions on Electronics. :1106-1110
Though millimeter wave applications have attracted much attention in recent years, they have not yet been put to practical use. The major reason for the failure may be a large transmission loss peculiar to the short wavelength. In order to overcome t
Autor:
Sho-hei Ishikawa, Koichi Yamaoka, Takeshi Izuho, Futoshi Kuroki, Yu-suke Murata, Tsukasa Yoneyama
Publikováno v:
IEEJ Transactions on Electronics, Information and Systems. 128:825-831
An NRD guide pulse radar front-end was fabricated for level sensor applications at 60 GHz. Main emphasis was placed on circuit configuration. Typically, an oscillation power is divided by a junction circuit and is introduced into two parts. One is fo
Publikováno v:
IEICE Transactions on Electronics. :2170-2177
Owing to simple structure, low cost and high performance, NRD-guide millimeter wave circuits have attracted much attention in recent years. In this paper, a variety of NRD-guide passive components are reviewed with emphasis on design techniques and p
Publikováno v:
IEICE Transactions on Electronics. :1729-1735
A rectangular waveguide compatible NRD guide E-plane bandpass filter is proposed for 55 GHz band OFDM applications. The NRD guide E-plane bandpass filter is constructed by inserting a metal foil array in the E-plane of NRD guide. Simulation, fabricat
Autor:
Tsukasa Yoneyama, Takashi Shimizu
Publikováno v:
Electronics and Communications in Japan (Part II: Electronics). 90:39-48
In this paper, NRD-guide and waveguide H-plane transitions are proposed to propagate a millimeter wave from the dielectric strip to the upper surface of the conductor plate through a waveguide made by excavating the conductor plate. As a result, they
Publikováno v:
Electronics and Communications in Japan (Part II: Electronics). 90:26-32
A 60-GHz frequency-stabilized small oscillator consisting of a Gunn diode, a circulator, and a matched termination is fabricated by using NRD guides. The emphasis in this paper is adaptability to a rectangular waveguide circuit. To this end, an NRD g
Autor:
Takashi Shimizu, Tsukasa Yoneyama
Publikováno v:
IEICE Transactions on Electronics. :1851-1857
A novel structure of bandpass filter using NRD guide E-plane resonators is proposed. The NRD guide E-plane resonator is constructed by inserting metal foils in the E-plane of NRD guide. Simulation, fabrication and handling of the filter are very easy
Publikováno v:
IEEE Aerospace and Electronic Systems Magazine. 21:26-29
An FM-CW radar front-end was fabricated in an integrated manner at 60 GHz by using the NRD guide. Main emphasis was placed on compactness in size and high-precise operation in performance. The fabricated radar consists of an FM Gunn oscillator, a bal
Autor:
Tsukasa Yoneyama, Takashi Shimizu
Publikováno v:
Electronics and Communications in Japan (Part II: Electronics). 89:16-26
This paper studies a feed structure suitable for connecting a millimeter-wave low sidelobe dielectric antenna with an NRD guide. Specifically, an NRD guide, a rectangular waveguide, a circular waveguide, and a microstrip patch antenna are considered