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公开(公告)号：EP0812065B1
公开(公告)日：2001-10-24
申请号：EP97109119.4
申请日：1997-06-05
发明人： Tanaka, Hiroaki
CPC分类号： H03H9/64 , H03H7/1708 , H03H9/0542
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公开(公告)号：EP0853377A3
公开(公告)日：2000-08-09
申请号：EP97122206.2
申请日：1997-12-16
发明人： Yagi, Yoshikazu , Sasaki, Yutaka , Tanaka, Hiroaki
IPC分类号： H01P1/18
CPC分类号： H01P1/184
摘要： In four microstriplines (2, 3, 4, 5) disposed close such that they are coupled with each other, the left-hand end of the third microstripline (4) serves as an input (6), the left-hand ends of the first and second microstriplines (2, 3) and the right-hand ends of the first and fourth microstriplines (2, 5) serve as outputs (7, 8, 9, 10), and the right-hand end of the second microstripline (3) and the left-hand end of the fourth microstripline (5) are grounded.
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公开(公告)号：EP0777337A3
公开(公告)日：2000-03-29
申请号：EP96119012.1
申请日：1996-11-27
发明人： Kochi, Tetsuya , Tanaka, Hiroaki
IPC分类号： H04B1/707
CPC分类号： H04B1/71
摘要： A spread-spectrum communication apparatus includes a receiving antenna (1), amplifiers (2, 3, 6), band-pass filters (4, 8, 10), a threshold filter circuit (5), a despreader (9), a base-band demodulation circuit (11), and other circuit stages. The threshold filter circuit (5) is connected in series before the despreader (9). The threshold filter circuit (5) has a frequency-band width covering the band width of a spread signal and cuts interference waves at certain levels at each frequency within the frequency band. The threshold filter (5) circuit includes a magnetostatic wave device (7).
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4.发明公开Comb-line filter including distributed constant line 审中-公开Kammfilter mit einer Leitung mit verteilten Konstanten
公开(公告)号：EP0920069A1
公开(公告)日：1999-06-02
申请号：EP98122249.0
申请日：1998-11-23
发明人： Sasaki, Yutaka , Tanaka, Hiroaki
IPC分类号： H01P1/203
CPC分类号： H01P1/20336
摘要： The invention provides a comb-line filter (10) including a distributed constant line, comprising: a plurality of resonators (3, 4) each comprising said distributed constant line having an open end and a grounding end; a first grounding electrode (2) connected to each of said grounding end of said resonators (3, 4); at least two of said resonators (3, 4) put in proximity to each other and arranged side by side; an input electrode (5) and an output electrode (6) respectively capacitance-coupled to two of said open ends of said resonators (3, 4) which are located the farthest from each other; and a second grounding electrode (11) capacitance-coupled to said input electrode (5) and said output electrode (6) threrebetween.
The attenuation value in the rejection band can be improved.摘要翻译： 本发明提供了一种包括分布常数线的梳状滤波器（10），包括：多个谐振器（3,4），每个谐振器包括具有开放端和接地端的所述分布常数线; 连接到所述谐振器（3,4）的每个所述接地端的第一接地电极（2）; 至少两个所述谐振器（3,4）彼此靠近放置并排布置; 分别电容耦合到所述谐振器（3,4）的两个所述开口端的输入电极（5）和输出电极（6），所述开口端彼此最远; 和与所述输入电极（5）和所述输出电极（6）电容耦合的第二接地电极（11）。 可以提高抑制带中的衰减值。
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公开(公告)号：EP0858173A2
公开(公告)日：1998-08-12
申请号：EP98101404.6
申请日：1998-01-27
发明人： Kochi, Tetsuya , Kanaya, Fumio , Tanaka, Hiroaki
IPC分类号： H04B1/69
CPC分类号： H04B1/69
摘要： The invention provides a small-sized low-cost spread spectrum communication device (1) including a narrow-band interference signal elimination circuit (5) capable of covering all the frequency band of a spread signal. A spread signal is received by an antenna (2) and supplied to a level detection circuit (10) via a variable amplifier (8) and a divider (9). The level detection circuit (10) controls the variable amplifier (8) so that the spread signal is amplified to a fixed level. The signal containing a narrow-band interfering signal is then passed through a plurality of magnetostatic filters (11, 12, 13) connected in series such that the saturation level thereof successively decreases, thereby limiting the narrow-band interfering signal having a level greater than the level of the spread signal in a step-by-step fashion. Thus, the narrow-band interfering signal contained in the spread signal is limited to a low level without encountering a significantly large incidental reduction in the spread signal. The narrow-band interference signal elimination circuit (5) according to the invention may be realized in the form of a small size.
摘要翻译： 本发明提供一种小型低成本扩频通信设备（1），其包括能够覆盖扩展信号的所有频带的窄带干扰信号消除电路（5）。 扩展信号由天线（2）接收，经由可变放大器（8）和分频器（9）提供给电平检测电路（10）。 电平检测电路（10）控制可变放大器（8），使得扩展信号被放大到固定电平。 包含窄带干扰信号的信号然后通过串联连接的多个静磁滤波器（11,12,13），使得其饱和电平连续降低，由此限制窄带干扰信号的电平大于 扩展信号的级别以一步一步的方式。 因此，包含在扩展信号中的窄带干扰信号被限制在低电平，而不会在扩展信号中遇到显着大的偶然减小。 根据本发明的窄带干扰信号消除电路（5）可以以小尺寸的形式实现。
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公开(公告)号：EP0858173A3
公开(公告)日：2003-04-23
申请号：EP98101404.6
申请日：1998-01-27
发明人： Kochi, Tetsuya , Kanaya, Fumio , Tanaka, Hiroaki
CPC分类号： H04B1/69
摘要： The invention provides a small-sized low-cost spread spectrum communication device (1) including a narrow-band interference signal elimination circuit (5) capable of covering all the frequency band of a spread signal. A spread signal is received by an antenna (2) and supplied to a level detection circuit (10) via a variable amplifier (8) and a divider (9). The level detection circuit (10) controls the variable amplifier (8) so that the spread signal is amplified to a fixed level. The signal containing a narrow-band interfering signal is then passed through a plurality of magnetostatic filters (11, 12, 13) connected in series such that the saturation level thereof successively decreases, thereby limiting the narrow-band interfering signal having a level greater than the level of the spread signal in a step-by-step fashion. Thus, the narrow-band interfering signal contained in the spread signal is limited to a low level without encountering a significantly large incidental reduction in the spread signal. The narrow-band interference signal elimination circuit (5) according to the invention may be realized in the form of a small size.
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公开(公告)号：EP0853377B1
公开(公告)日：2003-02-05
申请号：EP97122206.2
申请日：1997-12-16
发明人： Yagi, Yoshikazu , Sasaki, Yutaka , Tanaka, Hiroaki
IPC分类号： H01P1/18
CPC分类号： H01P1/184
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公开(公告)号：EP0777337B1
公开(公告)日：2002-09-04
申请号：EP96119012.1
申请日：1996-11-27
发明人： Kochi, Tetsuya , Tanaka, Hiroaki
IPC分类号： H04B1/707
CPC分类号： H04B1/71
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9.发明公开Dielectric lens, dielectric lens antenna including the same, and wireless device using the same 审中-公开Linsenantenne和DrahtlosesGerätmit einer derartigen dielektrischen Linsenantenne
公开(公告)号：EP0969549A1
公开(公告)日：2000-01-05
申请号：EP99111604.7
申请日：1999-06-15
IPC分类号： H01Q15/08
CPC分类号： H01Q15/08 , H01Q19/062 , H01Q19/08
摘要： The invention provides a dielectric lens (10), wherein the dielectric lens (10) is rotation-symmetrically shaped, and a flat end (11, 12) is disposed at a part of the edge the dielectric lens (10).
By the above described structure and arrangement, it become possible to widen a half-value angle in the direction in which the flat ends (11, 12) of the lens (10) are disposed without reducing a gain significantly.摘要翻译： 本发明提供了一种电介质透镜（10），其中电介质透镜（10）是旋转对称的，并且平坦端（11,12）设置在电介质透镜（10）的边缘的一部分处。 通过上述结构和布置，可以显着地减小透镜（10）的平坦端（11,12）的方向而不增加增益而扩大半值角。
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10.发明公开Spread spectrum receiver with narrowband interference elimination 失效与Schmallbandstörungsunterdrückung扩频接收机
公开(公告)号：EP0834998A3
公开(公告)日：1999-10-13
申请号：EP97116660.8
申请日：1997-09-24
发明人： Kochi, Tetsuya , Tanaka, Hiroaki
IPC分类号： H04B1/707
CPC分类号： H04B1/69
摘要： A spread-spectrum communication device (1) which eliminates a narrow-band interfering signal contained in a spread signal over a wide range of frequency and which presents a good S/N ratio in an reverse-spread signal. A magnetostatic filter (7) is used to limit the narrow-band interfering signal along with part of the spread signal. The limited spread signal and narrow-band interfering signal are reverse-spread by a matched filter (13). A plurality of correlation peaks derived from the same symbol and contained in the reverse-spread signal are synthesized in a rake synthesizer (14).
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