SIGNAL GENERATOR FOR TESTING MOBILE BODY

Japanese Patent JP3886982

B2

PROBLEM TO BE SOLVED: To provide a signal generator for testing a mobile body capable of testing a mobile terminal such as a mobile phone capable of carrying out frequency switching including frequency hopping at a high speed in a simple configuration.
SOLUTION: A control means 30 is configured to be able to switch baseband signals I, Q given to a quadrature modulation means 23, and to select either of first and second local oscillation signals La, Lb as a modulation local oscillation signal Li, and the control means 30 switches the baseband signals I, Q, or selects the modulation local oscillation signal Li, or either of their combinations and sequentially outputs a scheduled frequency signal synchronously with control information and switching of the baseband signals of communication information, revises the setting of the frequency of the other local oscillation signal while the one local oscillation signal is selected to carry out the frequency switching including output frequency hopping.

Yuichi Yamada
Koichiro Koga
Yuu Shimizu
Shinji Hoshino
Katsuhisa Iiyoshi

JP2004103880A

February 28, 2007

March 31, 2004

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Anritsu Co., Ltd.

H04B1/713; H04B1/7136; H04B7/26; H04W24/00; H04W88/02; (IPC1-7): H04B1/713; H04B7/26

JP2067031A
JP8510627A
JP64086638A
JP2003018231A
JP11243351A
JP3011833A
JP6343088A
JP2003060525A
JP2000324021A
JP11284547A
JP2003517759A

Seishi Hayakawa

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