发明名称 |
BROADBAND PHASE SHIFTER |
摘要 |
PROBLEM TO BE SOLVED: To provide a phase shifter with a broadband characteristic without the need for increasing the circuit scale. SOLUTION: The broadband phase shifter is characterized in providing an adjustable phase and amplitude characteristics by utilizing a combination of a polyphase filter type four-phase power distributor for using a CR circuit to provide outputs of four signals whose phases differ from each other by 90 degrees each, and an x-degree phase shifter for providing outputs of four signals whose phase difference is an optional phase angle of 90 degrees or below. COPYRIGHT: (C)2005,JPO&NCIPI
|
申请公布号 |
JP2005244361(A) |
申请公布日期 |
2005.09.08 |
申请号 |
JP20040048536 |
申请日期 |
2004.02.24 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
KAWASHIMA MUNEYA;NAKAGAWA TADAO |
分类号 |
H03H7/06;H03H7/18;H03H7/21;(IPC1-7):H03H7/18 |
主分类号 |
H03H7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|