公开(公告)号：EP1330059A4

公开(公告)日：2009-07-29

申请号：EP01976710

申请日：2001-10-17

申请人： SHARP KK ,  NAT INST INF & COMM TECH

发明人： SUEMATSU EIJI ,  OGAWA HIROYO ,  HAMAGUCHI K ,  SHOJI YOZO

IPC分类号： H04N5/38 ,  H04B1/26 ,  H04B1/40 ,  H04B7/15 ,  H04B7/185 ,  H04H20/00 ,  H04H20/02 ,  H04H20/74 ,  H04N5/44 ,  H04N7/08 ,  H04N7/081 ,  H04J1/00

CPC分类号： H04H20/74 ,  H04B1/005 ,  H04B1/406 ,  H04B7/15 ,  H04B7/18506 ,  H04H20/02

摘要： A radio communication apparatus, a transmitter apparatus and a receiver apparatus that are capable of dealing with a plurality of signal waves. The radio communication apparatus has a millimeter wave transmitter (15) and a millimeter wave receiver (29). The millimeter wave transmitter (15) includes a multiplexing circuit (1), a millimeter wave up-converter (4) and an antenna (3). The millimeter wave receiver includes an antenna (31), a millimeter wave down-converter (32) and an output processing circuit (45). User-only signal waves are modulated by modulator circuits (121-124) such that they are located between the terrestrial waves and the satellite waves. The modulated signal waves are multiplexed in the intermediate frequency band, then converted into a millimeter wave band, and then transmitted. On the receiver side, the multiplexed waves are frequency down-converted, then separated, and then demodulated.

公开(公告)号：EP1014587A4

公开(公告)日：2000-06-28

申请号：EP97911482

申请日：1997-11-07

申请人： SHARP KK

发明人： SUEMATSU EIJI

IPC分类号： H03L7/083 ,  H03L7/24 ,  H03L7/06

CPC分类号： H03L7/24 ,  H03L7/083

摘要： A microwave/millimeter wave injection/synchronization oscillator, wherein an oscillation circuit section (15) is provided with an active element section (1), a resonance circuit (4) which is connected to one end side of the section (1) and resonates at a prescribed frequency (f), and a harmonic output circuit (3) which is connected to the other end side of the section (1) and fetches signals containing nth harmonic components (n: an integer) of the signals having the frequency (f). An injection circuit section (16) is connected to the oscillation circuit section (15) through an input terminal (7) and injects a reference signal having the frequency component of f/m (m: an integer) to the resonance circuit (4) through the input terminal (7). Therefore, signals in the resonance circuit (4) are synchronized to the reference signal in frequency. The injection circuit section (16) can use a crystal oscillator for a stable low frequency. The above-mentioned constitution makes the frequency to be easily raised up to the millimeter wave band, reduces unnecessary wave signals, and widens the variable range of the frequency.

摘要翻译： 一种微波/毫米波注入/同步振荡器，其中振荡电路部分（15）设置有有源元件部分（1），谐振电路（4），其连接到部分（1）的一端侧并谐振 （1）的另一端侧连接的高次谐波输出电路（3），取出包含频率（f）的信号的n次谐波成分（n：整数）的信号 F）。 注入电路部分16通过输入端7与振荡电路部分15连接，并向谐振电路4注入频率分量为f / m（m：整数）的参考信号， 通过输入端子（7）。 因此，谐振电路（4）中的信号与参考信号的频率同步。 注入电路部分（16）可以使用稳定低频的晶体​​振荡器。 上述结构使得频率容易提高到毫米波段，减少了不必要的波形信号，并且扩大了频率的可变范围。