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Ken-ichi WATABE
Cryogenic Whispering Gallery Sapphire Oscillator for Microwave Frequency Standard Applications
Ken-ichi WATABE
Yasuki KOGA
Shin-ichi OHSHIMA
Takeshi IKEGAMI
John G. HARTNETT
Publication:
IEICE TRANSACTIONS on Electronics
Publication Date:
2004/09/01
Vol.
E87-C
No.
9
pp.
1640-1642
Type of Manuscript:
LETTER
Category:
Microwaves, Millimeter-Waves
Keyword:
sapphire
,
whispering gallery mode
,
4 K pulse-tube cryocooler
,
microwave oscillator
,
frequency stability
,
Summary
|
Full Text:PDF
Tunable Double-Sapphire-Loaded Microwave Cavity with High-Q Factor
Ken-ichi WATABE
Shin-ichi OHSHIMA
Takeshi IKEGAMI
John G. HARTNETT
Publication:
IEICE TRANSACTIONS on Electronics
Publication Date:
2003/07/01
Vol.
E86-C
No.
7
pp.
1393-1395
Type of Manuscript:
LETTER
Category:
Microwaves, Millimeter-Waves
Keyword:
frequency-tuning method
,
microwave
,
double-sapphire-loaded cavity
,
whispering gallery mode
,
Summary
|
Full Text:PDF
Characteristics of Optical Propagation through Rain for Infrared Space Communications
Ken-ichi WATABE
Makoto AKIBA
Norihisa HIROMOTO
Takeshi HAYASHI
Kazuhiko WAKAMORI
Yoshiyuki TAKABE
Yoichi CHIGAI
Shigeo ITO
Publication:
IEICE TRANSACTIONS on Communications
Publication Date:
2003/02/01
Vol.
E86-B
No.
2
pp.
862-864
Type of Manuscript:
LETTER
Category:
Optical Wireless Communications
Keyword:
optical propagation
,
atmosphere
,
BER
,
scintillation index
,
Summary
|
Full Text:PDF