公开(公告)号：WO2008017805A3

公开(公告)日：2008-06-19

申请号：PCT/GB2007002683

申请日：2007-07-16

Applicant: LIME MICROSYSTEMS LTD ,  MILENKOVIC SRDJAN ,  WEBSTER DANNY ,  BUSHEHRI EBRAHIM ,  KURYLO RISARD

Inventor： MILENKOVIC SRDJAN ,  WEBSTER DANNY ,  BUSHEHRI EBRAHIM ,  KURYLO RISARD

IPC: H04B1/28 ,  H03M7/00 ,  H04B1/40

CPC classification number: H04B1/403 ,  G06F1/0255 ,  H03M7/3026 ,  H03M7/3033 ,  H04B1/04 ,  H04B1/28 ,  H04B2001/0491

Abstract: An RF transceiver apparatus comprises transmitter circuitry arranged to convert signals from a baseband frequency to RF transmission frequencies and receiver circuitry arranged to convert signals from RF reception frequencies to the baseband frequency. The transmitter and receiver circuitry each comprise three mixers arranged to convert signals between the baseband frequency, a first intermediate frequency; a second intermediate frequency that is higher than the transmission frequencies; and a second intermediate frequency that is higher than the reception.

Abstract translation: RF收发器装置包括发射机电路，其被布置为将信号从基带频率转换成RF传输频率，并且接收器电路被布置成将信号从RF接收频率转换为基带频率。 发射机和接收机电路各自包括三个混频器，其被布置成在基带频率，第一中频之间转换信号; 高于传输频率的第二中频; 和高于接收的第二中频。