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1. 发明专利

JP2001274652A IMPEDANCE MATCHING CIRCUIT 失效
公开(公告)号：JP2001274652A
公开(公告)日：2001-10-05
申请号：JP2000086941
申请日：2000-03-27
申请人： MITSUBISHI ELECTRIC CORP , KANAZAWA INST OF TECHNOLOGY
发明人： IMANISHI YASUTO , SHOJI HIDEAKI , MIZUSAWA HIROO , BETSUDAN SHINICHI , NOGUCHI KEISUKE , YOTSUYANAGI YUICHI
IPC分类号： H03H7/40 , H01P5/04 , H04B1/04 , H04B1/18 , H04B1/3822 , H04B1/40
摘要： PROBLEM TO BE SOLVED: To solve the problem that a conventional impedance matching circuit reads to increase the circuit scale resulting in causing a difficulty of its application to a small-sized electric communication unit because a driver 4 or the like mechanically controlling a moving coil 5 is to be mounted although the circuit constant of a mobile phone can be changed in response to a change in the impedance of an antenna 6. SOLUTION: A mode changeover device 13 sets the circuit constant of the mobile phone according to a set mode.

2. 发明专利

JP2006254081A Dipole-type antenna 审中-公开
标题翻译：双极型天线
公开(公告)号：JP2006254081A
公开(公告)日：2006-09-21
申请号：JP2005067609
申请日：2005-03-10
申请人： Kanazawa Inst Of Technology , Mitsubishi Electric Corp , 三菱電機株式会社 , 学校法人金沢工業大学
发明人： IMANISHI YASUTO , MIZUSAWA HIROO , NOGUCHI KEISUKE , BETSUDAN SHINICHI , KATAKI TAKASHI , TADA KATSUTOSHI
IPC分类号： H01Q9/16 , H01Q1/24 , H01Q1/38
摘要： PROBLEM TO BE SOLVED: To provide a dipole-type antenna having a simple structure applicable to a mobile terminal, and capable of obtaining wide-band characteristics.
SOLUTION: The antenna comprises two conductor plates 1 and 2 of a rectangle shape having different length and width, respectively. Each of one side of the two conductor plates 1 and 2, in the longitudinal direction is placed in a straight line and each of one side in the width direction is placed in close at a predetermined gap on a flat surface or a substantially flat surface. A feeding line 3 is connected to each of the two conductor plates 1 and 2.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供具有可应用于移动终端的简单结构并能够获得宽带特性的偶极型天线。解决方案：天线包括分别具有不同长度和宽度的矩形形状的两个导体板1和2。两个导体板1和2的纵向方向上的一个侧面被放置成直线，并且宽度方向上的一侧中的每一个在平坦表面或基本上平坦的表面上以预定间隙紧密地放置。馈电线3连接到两个导体板1和2中的每一个。版权所有：（C）2006，JPO＆NCIPI

3. 发明专利

JP2002335180A PORTABLE TELEPHONE SET 失效
公开(公告)号：JP2002335180A
公开(公告)日：2002-11-22
申请号：JP2001137740
申请日：2001-05-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHOJI HIDEAKI , IMANISHI YASUTO , FUKAZAWA TORU , NISHIOKA YASUHIRO
IPC分类号： H01Q1/44 , H01Q1/08 , H01Q1/24 , H01Q21/28 , H04B1/38 , H04B1/3822 , H04B15/02 , H04M1/02
摘要： PROBLEM TO BE SOLVED: To provide a portable telephone set capable of reducing changes in gain, due to the circumstance of the user's hand. SOLUTION: In a foldable portable telephone set 1, a shielding box 14 in an upper case 3 is connected with a flexible cable 9 to the output terminal of a transmission circuit 15 in a lower case 4, and the shielding box 14 is used as an antenna. Therefore, changes in gain due to the circumstance of the user's hand becomes smaller than that in conventional cases, in which the upper edge of the lower case 4 is provided with a rod antenna.

4. 发明专利

JPH08107304A PORTABLE RADIO EQUIPMENT 失效
公开(公告)号：JPH08107304A
公开(公告)日：1996-04-23
申请号：JP24012294
申请日：1994-10-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： IMANISHI YASUTO , KOMORI ERIKO
IPC分类号： H01Q1/22 , H01Q1/24 , H01Q1/27 , H01Q1/36 , H01Q1/38 , H01Q1/52 , H01Q9/16 , H01Q9/30 , H01Q11/08 , H04B1/38 , H04W88/02 , H04Q7/32
摘要： PURPOSE: To make an antenna small by laminating a sheet insulation member with a conductor coated thereto to spirally form the conductor in succession thereby using the winding for an inductor element without deviation of the resonance frequency due to a surrounding material. CONSTITUTION: A resin case 1 covers a metallic case 2 and the metallic case 2 incorporates a radio circuit section 3 to apply electromagnetic shielding to the radio circuit section 3. A connection terminal 5 to feed an antenna is connected to an output terminal of the radio circuit section 3, the connection terminal 5 is led to the outside of the metallic case 2 in a state that no electromagnetic shielding is interfered and connects electrically to an inductor element 7 whose electric length is nearly λ/4. The inductor element 7 is formed by forming a ferrite material into a green sheet with low dielectric constant and low loss, making a via-hole to the sheet, printing a conductor whose resistance is low to the sheet and laminating and integrating the sheet to allow the conductor to be a continuous winding and baking the sheet. The small sized inductor element is mass-produced and the performance is kept stable.

5. 发明专利

JPH0746014A ANTENNA DEVICE FOR PORTABLE RADIO EQUIPMENT 失效
公开(公告)号：JPH0746014A
公开(公告)日：1995-02-14
申请号：JP18981093
申请日：1993-07-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： IMANISHI YASUTO
IPC分类号： H01Q1/24 , H04B1/38
摘要： PURPOSE:To extract the electric performance of a fixed antenna as much as possible by reducing the influence of a half-wavelength whip antenna at the time of housing the half-wavelength whip antenna. CONSTITUTION:The height of the part of a bar except the cap of a dielectric bar-shaped cap 33 at the upper part of a half-wavelength whip antenna main body 51 is made longer than the height of a fixed antenna 14, so that the metallic part of the half-wavelength whip antenna main body 51 can be separated from the fixed antenna 14 at the time of housing the half-wavelength whip antenna 50. Thus, the influence on the fixed antenna can be reduced at the time of housing the half-wavelength whip antenna, and the gain can be improved.

6. 发明专利

JPH06268547A ANTENNA SYSTEM FOR PORTABLE RADIO EQUIPMENT 失效
公开(公告)号：JPH06268547A
公开(公告)日：1994-09-22
申请号：JP4924693
申请日：1993-03-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： IMANISHI YASUTO , KOMORI ERIKO
IPC分类号： H01Q1/24 , H01Q9/32 , H04B1/38
摘要： PURPOSE:To obtain an antenna system without causing gain deterioration due to a polarized wave loss in spite of the attitude of the portable radio equipment. CONSTITUTION:A blade antenna 7 is energized through a coaxial line 5 from a metallic case 3 covered by a resin made case 1. A cylindrical choke 4 whose electric length is lambda/4 is connected to an outer sheath of an upper end of the coaxial line 5, and the performance equal to that of a lambda/2 dipole antenna together with the blade antenna 7 and the object is attained by using a movable connection section 8 so as to keep the blade antenna 7 perpendicular regardless of the attitude of the portable radio equipment.

7. 发明专利

JP2006033509A Antenna device 审中-公开
标题翻译：天线设备
公开(公告)号：JP2006033509A
公开(公告)日：2006-02-02
申请号：JP2004210523
申请日：2004-07-16
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUKAZAWA TORU , OTSUKA MASATAKA , IMANISHI YASUTO
IPC分类号： H01Q9/42 , H01Q13/08
摘要： PROBLEM TO BE SOLVED: To provide an antenna device which can reduce a current on a ground conductor.
SOLUTION: The antenna is provided with a 1st ground conductor 1, and two conductors 2, 4 which are installed with predetermined spacing from the 1st ground conductor 1. A voltage source 6 is installed between the end of the conductor 2 and the 1st ground conductor 1, and, the end of the conductor 4 and the 1st ground conductor 1 are shortened. A voltage source which is installed between the end of the conductor 4 and the 1st ground conductor 1 is called a 2nd voltage source 7, and on the other hand, the voltage source installed between the end of the conductor 2 and the 1st ground conductor 1 is the 1st voltage source 6. When both the voltage sources are fed in the same phases, instead of connecting the end of the conductor B and the 1st ground conductor, it is made to fulfill a relation Gn>3×Gc, here, Gc is the conductance of the conductor 2 side seen from the 1st voltage source 6, and Gn is conductance when the both voltage sources are fed in reverse phases.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供可以减少接地导体上的电流的天线装置。
解决方案：天线设有第一接地导体1和与第一接地导体1隔开预定距离的两个导体2,4。电压源6安装在导体2的端部和第一接地导体1，导体4的端部和第一接地导体1缩短。安装在导体4的端部和第一接地导体1之间的电压源称为第二电压源7，另一方面，安装在导体2的端部与第一接地导体1之间的电压源是第一电压源6.当两个电压源以相同的相位馈电时，代替连接导体B的端部和第一接地导体，使其满足关系Gn> 3×Gc，这里Gc 是从第一电压源6看到的导体2侧的电导，当两个电压源以相反的方式馈电时，Gn是导通的。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2004045242A Antenna characteristic measuring apparatus 有权
公开(公告)号：JP2004045242A
公开(公告)日：2004-02-12
申请号：JP2002203667
申请日：2002-07-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUKAZAWA TORU , MAKINO SHIGERU , SHIMOMURA KENKICHI , NISHIOKA YASUHIRO , IMANISHI YASUTO
IPC分类号： G01R29/10 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To miniaturize equipment to be mounted on a compact radio terminal when measuring antenna characteristics in the compact radio terminal utilizing a light signal. SOLUTION: The antenna characteristic measuring apparatus comprises: a transmitter 5 for outputting a transmission signal; an E/O conversion section 4 for converting the transmission signal outputted by the transmitter 5 to the light signal; the compact radio terminal 1 that receives light signal being converted by the E/O conversion section 4 via an optical fiber, includes an O/E conversion section 3 for converting to a high-frequency signal, and mounts an antenna 2 to be measured for irradiating the high-frequency signal being converted by the O/E conversion section 3; and a receiver 7 that receives the high-frequency signal being irradiated by the antenna 2 to be measured via a reception antenna 6 and measures radiation characteristics in the antenna 2 to be measured based on the received high-frequency signal. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2003332931A Portable radio terminal 有权
标题翻译：便携式无线电终端
公开(公告)号：JP2003332931A
公开(公告)日：2003-11-21
申请号：JP2002140594
申请日：2002-05-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUKAZAWA TORU , KODAMA KENICHIRO , MAKINO SHIGERU , IMANISHI YASUTO , NISHIOKA YASUHIRO , TANAKA TETSUYA
IPC分类号： H01Q1/50 , H01Q1/24 , H04B1/38 , H04B1/3822 , H04M1/00 , H04M1/725
摘要： PROBLEM TO BE SOLVED: To solve the problem that mounting a number of passive element sections 4 to a compact portable radio terminal is difficult and makes large external dimensions although the radiation pattern of an antenna can be changed by changing the state of the passive element section 4, when the passive element sections 4 are arranged in a number of lines each while a number of lines are wired among a plurality of cases. SOLUTION: An high-impedance element 17 that increases the impedance of a linear conductor 14 is provided, and a linear conductor 18 for mutually connecting a ground conductor 11 to a ground conductor 12 is arranged in parallel with the linear conductor 14, thus connecting a load 19 in series with the linear conductor 18. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题为了解决将多个无源元件部分4安装到小型便携式无线电终端的问题，尽管可以通过改变天线的状态来改变天线的辐射图案，无源元件部分4，当无源元件部分4以多个线排列时，同时在多个情况下布线数量。解决方案：提供增加线性导体14的阻抗的高阻抗元件17，并且用于将接地导体11与接地导体12相互连接的线性导体18与线状导体14并联布置，从而将负载19与线性导体18串联连接。版权所有（C）2004，JPO

10. 发明专利

JP2002335315A MOBILE TERMINAL 失效
公开(公告)号：JP2002335315A
公开(公告)日：2002-11-22
申请号：JP2001137818
申请日：2001-05-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHOJI HIDEAKI , IMANISHI YASUTO , TANAKA TETSUYA
IPC分类号： H05K5/02 , H04M1/02 , H04W88/02 , H05K7/14 , H04Q7/32
摘要： PROBLEM TO BE SOLVED: To provide a mobile terminal that enhances a radiation efficiency by insulation wiring at a hinge section so as to ensure a stable gain. SOLUTION: A 1st case and a 2nd case each comprising a resin case 21 and a metallic case 22 are hinged freely foldably by a hinge section 4, a hinge half circular section 401 projected from a folding side end of the metallic case 22 is formed, and a notch section 402 to improve radiation from a flexible board 10 is formed to the hinge half circular section 401.

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