Zobrazeno 81 - 90
of 156 690
pro vyhledávání: '"76"'
Autor:
Yoshio Aoki, Tadayuki Shimura, Yoji Ohashi, Toshihiro Shimura, Aoki Shigenori, Hiroki Someta, Yoshihiro Kawasaki, Tatsuya Hirose
Publikováno v:
28th European Microwave Conference, 1998.
We have developed novel hermetically sealed package with through-hole for the use in low-cost millimeter-wave applications. The package is available with specifications ranging from DC to 85 GHz. The insertion loss at feed-through of the package is l
Publikováno v:
2005 Quantum Electronics and Laser Science Conference.
We describe our recent experiments on one-way QKD in optical fibers. We used both, weak coherent pulses (WCP) as well as a heralded single photon source based on parametric down conversion of CW light.
Publikováno v:
2004 IEEE International SOI Conference (IEEE Cat. No.04CH37573).
This paper describes a low-noise subharmonic mixer MMIC for 76-GHz automotive radar systems. To improve a noise figure in a 100-kHz low IF band, a low 1/f-noise Schottky barrier diode (SBD) has been developed for the mixer. This SBD can offer 20 dB b
Publikováno v:
IEEE Transactions on Industrial Electronics & Control Instrumentation; 1976, Vol. IECI-23 Issue 4, p468a-468c, 1p
Publikováno v:
1996 IEEE MTT-S International Microwave Symposium Digest.
An integrated active antenna with a polarization purity better than 28 dB and a radiated power of 8 dBm at 75.7 GHz is presented. The linearly polarized radiator consists of a planar resonant antenna and a transit-time diode monolithically integrated
Autor:
Kazuo Shirakawa, Kozo Makiyama, Yoji Ohashi, S. Yokokawa, H. Someta, Tatsuya Hirose, Y. Kawasaki, Toshihiro Shimura, Aoki Shigenori
Publikováno v:
1998 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.98CH36182).
Using the flip-chip bonding technique, we developed a 76-GHz MMIC chip set for automotive radars. A chip set consists of a 76-GHz amplifier, a 76-GHz mixer, 76-GHz SPDT switches, a 38/76-GHz doubler, a 38-GHz voltage-controlled oscillator and a 38-GH
Autor:
D. Takashima, Y. Takeuchi, T. Miyakawa, Y. Itoh, R. Ogiwara, M. Kamoshida, K. Hoya, S.M. Doumae, T. Ozaki, H. Kanaya, M. Aoki, K. Yamakawa, I. Kunishima, Y. Oowaki
Publikováno v:
2001 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. ISSCC (Cat. No.01CH37177).
Publikováno v:
32nd European Microwave Conference, 2002.
A multiple-beam antenna based on the principles of a folded reflectarray antenna and a bifocal antenna is presented. Experimental results are given for a 76.5 GHz antenna with 90 mm diameter, a height of 26 mm, and a scanning range of ±13.5 as well
Publikováno v:
IEEE Transactions on Computers; 1976, Vol. C-25 Issue 12, p1361-1361, 1p
Publikováno v:
IEEE Transactions on Electron Devices; 1976, Vol. 23 Issue 12, pc4-c4, 1p