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1. 发明申请

US20070008222A1 Multi-band antenna arrangement 有权
标题翻译：多频段天线布置
公开(公告)号：US20070008222A1
公开(公告)日：2007-01-11
申请号：US11176628
申请日：2005-07-06
申请人： Hanyang Wang , Ming Zheng , Sean Brett
发明人： Hanyang Wang , Ming Zheng , Sean Brett
IPC分类号： H01Q1/38
CPC分类号： H01Q9/0421 , H01Q1/243 , H01Q5/371 , H01Q5/40 , H01Q7/00 , H01Q21/30
摘要： An antenna arrangement comprising: a ground plane; a ground point connected to the ground plane; a feed point; a λ/2 antenna element connected to the ground point and to the feed point and extending between the ground point and the feed point as a loop that defines an area; and a λ/4 antenna element located within the area.
摘要翻译：一种天线装置，包括：接地平面; 连接到地面的地面点; 一个饲料点连接到接地点和馈电点并且在接地点和馈电点之间延伸的λ/ 2天线元件作为限定区域的环路; 以及位于该区域内的λ/ 4天线元件。

2. 发明授权

US07205942B2 Multi-band antenna arrangement 有权
公开(公告)号：US07205942B2
公开(公告)日：2007-04-17
申请号：US11176628
申请日：2005-07-06
申请人： Hanyang Wang , Ming Zheng , Sean Brett
发明人： Hanyang Wang , Ming Zheng , Sean Brett
IPC分类号： H01Q1/38
CPC分类号： H01Q9/0421 , H01Q1/243 , H01Q5/371 , H01Q5/40 , H01Q7/00 , H01Q21/30
摘要： An antenna arrangement comprising: a ground plane; a ground point connected to the ground plane; a feed point; a λ/2 antenna element connected to the ground point and to the feed point and extending between the ground point and the feed point as a loop that defines an area; and a λ/4 antenna element located within the area.

3. 发明授权

US06317590B1 Mixer for a receiver 有权
标题翻译：搅拌机用于接收机
公开(公告)号：US06317590B1
公开(公告)日：2001-11-13
申请号：US09213063
申请日：1998-12-16
申请人： Adrian P. Nash , Sean Brett
发明人： Adrian P. Nash , Sean Brett
IPC分类号： H04B126
CPC分类号： H03D9/0666 , H03D7/14 , H03D7/1408 , H03D9/0633
摘要： A sub-harmonically pumped mixer has an anti-parallel diode pair switchable at twice the local oscillator frequency. Preferably, there are provided dual anti-parallel diode pairs. The local oscillator is coupled to the diode pairs by means of an unbalanced to balanced transformer. The balanced output of the transformer is coupled to the diodes and provides anti-phased signals to respective ones of anti-parallel diode pairs.
摘要翻译：一个亚谐波抽运混频器具有可以以本机振荡器频率的两倍的反并联二极管对开关。优选地，提供双反并联二极管对。本地振荡器通过不平衡到平衡变压器耦合到二极管对。变压器的平衡输出耦合到二极管，并向相应的反并联二极管对提供反相信号。

4. 发明授权

US06397044B1 Transceiver 失效
标题翻译：收发器
公开(公告)号：US06397044B1
公开(公告)日：2002-05-28
申请号：US09466866
申请日：1999-12-17
申请人： Adrian Nash , Sean Brett
发明人： Adrian Nash , Sean Brett
IPC分类号： H04B104
CPC分类号： H03C3/0983 , H03C3/0925 , H03C3/0933 , H03C3/0966 , H04B1/408
摘要： A transceiver for a portable radio communication apparatus comprising a receiver for receiving a signal at a received frequency and including a local oscillator, a transmitter being operable to transmit at a transmission frequency, said transmission frequency being offset from, and aligned to, the received frequency by a predetermined frequency spacing, the transmitter including a mixer having a first port for inputting said transmission frequency signal and a second port for inputting the local oscillator signal, and comprising means for rectifying the input local oscillator signal to provide a conductance waveform at a multiple of the local oscillator signal and means for mixing said transmission frequency signal with the conductance waveform at said multiple of the local oscillator signal frequency for down-converting the transmission frequency signal to an intermediate frequency signal.
摘要翻译：一种用于便携式无线电通信装置的收发器，包括用于以接收频率接收信号并包括本地振荡器的接收机，发射机可操作以以传输频率发送所述发射频率偏移并对准所接收的频率通过预定的频率间隔，发射机包括具有用于输入所述发射频率信号的第一端口和用于输入本地振荡器信号的第二端口的混频器，并且包括用于整流输入本地振荡器信号以提供多个电导波形的装置以及用于将所述传输频率信号与所述多个本地振荡器信号频率处的电导波形混合的装置，用于将传输频率信号下变频为中频信号。

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