Antenna
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专利名称:ANTENNA发明人:USUI TAKESHI,KOBAYASHI ATSUSHI 申请号:JP12162791申请日:19910528公开号:JPH04349704A公开日:19921204专利内容由知识产权出版社提供摘要:PURPOSE:To facilitate the manufacture of the antenna, to make the quality stable, to form the antenna to have various shapes suitable for receiving a radio wave, to make the thickness thinner and to improve the sensitivity. CONSTITUTION:The antenna is formed without need of a printed circuit board by an insulation resin 9 between an antenna element layer 3 and a 1st ground layer 8. The antenna element layer 3 and 1st and 2nd ground layers 8,12 are formed flexibly. The antenna is formed to have various shapes suitable for receiving a radio wave by bending the antenna element layer 3 and the ground layers 8,12 to an optional shape. The microstrip line 7 is connected electrically to the antenna element 2. The microstrip line 7 is used for an amplifier circuit to be connected to an amplifier or the like. The 2nd ground layer 12 is laminated to the outer side of the 1st ground layer 8. The microstrip line 7 is surrounded by a ground plate to be shielded thereby preventing noise invasion from the microstrip line 7.申请人:MATSUSHITA ELECTRIC WORKS LTD更多信息请下载全文后查看。
专利名称:ANTENNA发明人:MORITA YUSUKE,AKITA TSUGIO,KAWADA YOSHIAKI,MAKINO KATSUHIKO申请号:JP16279387申请日:19870630公开号:JPS647803A公开日:19890111专利内容由知识产权出版社提供摘要:PURPOSE:To easily execute assembly of the titled antenna by inserting a radiation use antenna body and a waveguide use antenna body successively through a supporting rod fixed to a spherical supporting part for constituting a reflection use antenna body, screwing an ornamental to the tip of the supporting rod in this state, and assemblying the antenna. CONSTITUTION:In case of assembling an antenna element, as for that which a supporting rod 3 is formed separately against a spherical supporting part 1, one end columnar part of the supporting rod 3 is screwed to the spherical supporting part 1 and fixed, and this supporting rod 3 is inserted successively through holes of a spherical supporting part 4 and a rod-like part 5, a feed part 11 and a rod-like part 12, a spherical supporting part 18 and a rod-like part 20, and the spherical supporting part 4 and a rod-like part 19. In a state that the tips of the rod-like parts 12, 20, 21 and 24a have been fitted into circular recessed parts 27-30, an ornamental ball 24 is screwed to an external screw of the tip of the supporting rod 3, and also, an external screw 25 of the ornamental ball 24 is screwed to an internal screw of the spherical supporting part 19, and each antenna body is coupled to each other. In such a way, the assembly can be executed easily.申请人:MATSUSHITA ELECTRIC IND CO LTD 更多信息请下载全文后查看。
专利名称:ANTENNA发明人:ENOMOTO TOMIARI,MUROIKATSUJI,KURATA TAKEAKI,MAKINO TERUYA 申请号:JP6845479申请日:19790601公开号:JPS55161401A公开日:19801216专利内容由知识产权出版社提供摘要:PURPOSE:To eliminate protrusions for storage and make height of the antenna from the ground high for expansion, by storing the mast body and the antenna body in the external tube. CONSTITUTION:Wire 3 is extended out to the antenna main body 4 side from wire leading-out/in part 2 by rotation of the motor of wire driving equipment 1 and presses upward the top tube of mast body 5, and antenna main body 10 and mast body 5 stored in external tube 9 are expanded. Coaxial cable 11 is wound off according to expansion of mast body 5 and is led into external tube 9 and expanded mast body 5. Since antenna body 10 is placed at the upper end of expanded mast body 5, height of the antenna from the ground becomes high and transmission and reception become good.申请人:NIPPON ANTENNA KK更多信息请下载全文后查看。
专利名称:ANTENNA发明人:USUI TAKESHI,KOBAYASHI ATSUSHI 申请号:JP10948691申请日:19910515公开号:JPH04337904A公开日:19921125专利内容由知识产权出版社提供摘要:PURPOSE:To enable assembly and manufacture with a little man-hour, to reduce the number of equipments and to enable reception over a wide frequency band. CONSTITUTION:An antenna element 3 formed by a metal plate is adhered and fixed to the inner face of a housing 1. A ground 4 formed by a metal plate is fitted, fixed to an opening part 2 of the housing 1 and arranged in counter to the antenna element 3 through a void 5. The antenna can be constituted by integrating the antenna element 3 and the ground 4, which are formed by the metal plates, into the housing 1. A ground 6 formed by the metal plate can be also used as the cover of the housing 1. The width of the void between the antenna element 3 and the ground 4 can be changed by bending the metal plate forming the ground 4 or the like, and the distribution of a dielectric constant between the antenna element 3 and the ground 4 can be adjusted by selecting the kind of resin forming the housing 1.申请人:MATSUSHITA ELECTRIC WORKS LTD更多信息请下载全文后查看。
专利名称:ANTENNA发明人:NISHIGORI MASABUMI,AIZAWA SHINICHI 申请号:JP10548791申请日:19910510公开号:JPH04334201A公开日:19921120专利内容由知识产权出版社提供摘要:PURPOSE:To easily change over a receiving frequency band by providing a changeover switch which opens/closes the connection of duplicate antenna element so as to change over a frequency characteristic. CONSTITUTION:A base part 1 incorporates a printed board and mounts a coil 4, a capacitor 5 and a transformer 6 for impedance conversion, which constitute an LC resonance circuit. The changeover switch 7 changing over the frequency characteristic by opening/closing the connection of the two antenna elements. That is, the two antenna elements, the coil 4, the capacitor 5 and the changeover switch 7 are connected so as to form a closing loop. Then, receiving sensitivity is upgraded with regard to a VHF low band by turning off (LOW side) the changeover switch 7 and receiving sensitivity is upgraded with regard to a VHF high band and a UHF band by turning it on (HI side). Consequently, the frequency characteristic of an antenna changes so as to change over the receiving frequency band.申请人:NISHIKIORI:KK更多信息请下载全文后查看。
专利名称:ANTENNA发明人:IWAI TORU,IKEDA JUNICHI 申请号:JP29852290申请日:19901102公开号:JPH04170805A公开日:19920618专利内容由知识产权出版社提供摘要:PURPOSE:To favorably execute installing work and maintenance work, and simultaneously, to easily obtain an expected directional characteristics by arranging a probe to receive a radio wave radiated from tow antenna elements on a line in the direction of the bisector of an angle made by each principal radiation directions of two antenna elements. CONSTITUTION:Each one side of two rectangular flat antenna elements 21, 22 is connected to each other, and two elements 21, 22 are combined at the prescribed angle. Besides, nearly on the line of the bisector of the angle made by the principal radiation directions 21A, 22A of each antenna element 21, 22, the probe 23 to receive the radio wave from the antenna elements 21, 22 is arranged. Accordingly, if the relation of the phases of signals fed to two antenna elements 21, 22 respectively is adjusted as monitoring the intensity of the signals received at the probe 23, the expected directional pattern can be surely attained. Thus, the strict adjustment of the length of a feeder line from a signal generating device becomes useless, and the installing work and the maintenance work can be facilitated.申请人:SUMITOMO ELECTRIC IND LTD更多信息请下载全文后查看。