Title:
移相装置
Document Type and Number:
Japanese Patent JP5759026
Kind Code:
B2
Abstract:
A phase shifting device is disclosed. The phase shifting device comprises an input operable to receive an input signal to be adjusted; a coupling device coupled with the input and with an output; and at least one lumped equivalent impedance transformer circuit coupled with the coupling device to receive the input signal, the lumped equivalent impedance transformer circuit having liquid crystal variable capacitors operable to adjust the input signal in response to a bias voltage applied thereto and to provide the adjusted input signal to the coupling device as an output signal. Rather than using a microstrip structure, a lumped element equivalent is instead used, which makes it possible to exploit the advantages of a liquid crystal structure but in a more compact form.
Inventors:
Burja, Senado
Application Number:
JP2013558319A
Publication Date:
August 05, 2015
Filing Date:
March 02, 2012
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
H01P1/18; H03H7/20
Domestic Patent References:
| JP2008079027A | ||||
| JP2002076810A |
Foreign References:
| US3882431 | ||||
| US4859972 | ||||
| US5084801 |
Other References:
J.A.Yeh,et al.,"Microwave characteristics of liquid-crystal tunable capacitors",IEEE Electron Device Letters,2005年 6月,Vol.26,No.7,,pp.451-453
Attorney, Agent or Firm:
Okabe
Koji Yoshizawa
Katsumi Miyama
Takashi Kawasaki
Koji Yoshizawa
Katsumi Miyama
Takashi Kawasaki