2024年3月15日发(作者：陈其雨)
专利内容由知识产权出版社提供
专利名称：Arrangement for transmitting and receiving
radio frequency signal at two frequency
bands
发明人：Lehtinen, Kari,Pesola, Mikko
申请号：EP97660082.5
申请日：19970714
公开号：EP0820154A2
公开日：19980121
专利附图：
摘要：The present invention relates to an arrangement for transmitting a
radiofrequency signal at two different frequency bands and for receiving at two different
frequency bands. The arrangement can be applied for instance to a transceiver of a radio
communications system operating at two different frequency bands, or to a transceiver
meant to be used in connection with two different radio communications systems. One of
the ideas of the invention is that one and the same filter (72), belonging to the RF front
end of the antenna circuit, is used for filtering interference from at least two signals
located at different frequency bands, in which case the number of filters (72, 75) can be
reduced. By means of the solution suggested in the invention, also the number of
controllable switches (73) provided on the signal path of the RF front end can be
minimised.
申请人：NOKIA MOBILE PHONES LTD.
地址：Keilalahdentie 4 02150 Espoo FI
国籍：FI
代理机构：Lind, Robert
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2024年3月15日发(作者：陈其雨)
专利内容由知识产权出版社提供
专利名称：Arrangement for transmitting and receiving
radio frequency signal at two frequency
bands
发明人：Lehtinen, Kari,Pesola, Mikko
申请号：EP97660082.5
申请日：19970714
公开号：EP0820154A2
公开日：19980121
专利附图：
摘要：The present invention relates to an arrangement for transmitting a
radiofrequency signal at two different frequency bands and for receiving at two different
frequency bands. The arrangement can be applied for instance to a transceiver of a radio
communications system operating at two different frequency bands, or to a transceiver
meant to be used in connection with two different radio communications systems. One of
the ideas of the invention is that one and the same filter (72), belonging to the RF front
end of the antenna circuit, is used for filtering interference from at least two signals
located at different frequency bands, in which case the number of filters (72, 75) can be
reduced. By means of the solution suggested in the invention, also the number of
controllable switches (73) provided on the signal path of the RF front end can be
minimised.
申请人：NOKIA MOBILE PHONES LTD.
地址：Keilalahdentie 4 02150 Espoo FI
国籍：FI
代理机构：Lind, Robert
更多信息请下载全文后查看