摘要:
An antenna device includes an antenna element 10 and a printed circuit board 20 on which the antenna element 10 is mounted. The antenna element 10 includes a base 11 which is made of a dielectric material and a radiation conductor formed on at least one surface of the base 11. The printed circuit board 20 includes ground clearance region 23a having substantially a rectangular shape and having one side contacting an edge of the printed circuit board and other three sides surrounded by an edge line of a ground pattern, an antenna mounting region 27 provided within the ground clearance region 23a, and at least one frequency adjusting element 30 provided within the ground clearance region 27. The frequency adjusting element 30 is provided on the far side of the antenna mounting region 27 as viewed from an edge 20e of the printed circuit board 20.
摘要:
A radiation electrode 132 is printed on the upper surface of the dielectric body, side surface thereof, and bottom surface thereof in a folded configuration. A feeding electrode 130 and ground electrode 134 are printed on the bottom surface of the antenna elements 124. The feeding electrode 130 and radiation electrode 132 on the upper surface are opposed to each other as parallel planes. The ground electrode 134 and radiation electrode 132 are also opposite to each other as parallel planes. No electrode is formed on one of the side surfaces of the antenna element 124 that is opposed to the side surface at the side of which the radiation electrode 132 is folded.
摘要:
An object of the present invention is to further miniaturize a module substrate with an antenna while maintaining desirable characteristics. A module substrate with an antenna according to the invention has a substrate body and first and second radiation conductors and provided on one surface of the substrate body and being symmetrical. The first and the second radiation conductors asymmetrical with respect to a first line B that passes a power-supplying the first radiation conductor and a power-supplying point of the second radiation conductor. Therefore, the wavelength of radio waves radiated from the current flowing in one direction as viewed from the first line B is different from that of radio waves radiated from the current flowing in the other direction as viewed from the first line B. As a result, the substrate body can be miniaturized while securing a broader band than the conventional module substrates.
摘要:
An object of the present invention is to further miniaturize a module substrate with an antenna while maintaining desirable characteristics. A module substrate 100 with an antenna according to the invention has a substrate body 110 and first and second radiation conductors 121 and 122 provided on one surface 111 of the substrate body 110 and being symmetrical. The first and the second radiation conductors 121 and 122 are asymmetrical with respect to a first line B that passes a power-supplying point 121b of the first radiation conductor and a power-supplying point 122b of the second radiation conductor. Therefore, the wavelength of radio waves radiated from the current flowing in one direction as viewed from the first line B is different from that of radio waves radiated from the current flowing in the other direction as viewed from the first line B. As a result, the substrate body 110 can be miniaturized while securing a broader band than the conventional module substrates.
摘要:
An antenna device includes an antenna element 10 and a printed circuit board 20 on which the antenna element 10 is mounted. The antenna element 10 includes a base 11 which is made of a dielectric material and a radiation conductor formed on at least one surface of the base 11. The printed circuit board 20 includes ground clearance region 23a having substantially a rectangular shape and having one side contacting an edge of the printed circuit board and other three sides surrounded by an edge line of a ground pattern, an antenna mounting region 27 provided within the ground clearance region 23a, and at least one frequency adjusting element 30 provided within the ground clearance region 27. The frequency adjusting element 30 is provided on the far side of the antenna mounting region 27 as viewed from an edge 20e of the printed circuit board 20.
摘要:
An antenna apparatus includes an antenna block and a substrate. The antenna block has a base that is made of a substantially cuboid dielectric body, an upper-surface conductor formed on an upper surface of the base, first and second pad electrodes that are formed on both ends of a bottom surface of the base in a longitudinal direction of the base, respectively, and a lateral-surface conductor connecting the upper-surface conductor and the second pad electrode. The substrate has a region mounting the antenna block, a ground pattern provided around the mounting region, first and second lands that are provided within the mounting region so as to correspond to the positions of the first and second pad electrodes, a feed line that is connected to the first land, an impedance-adjusting pattern connecting the first land and the ground pattern, and a frequency-adjusting pattern connecting the second land and the ground pattern.
摘要:
An antenna apparatus includes an antenna block and a substrate. The antenna block has a base that is made of a substantially cuboid dielectric body, an upper-surface conductor formed on an upper surface of the base, first and second pad electrodes that are formed on both ends of a bottom surface of the base in a longitudinal direction of the base, respectively, and a lateral-surface conductor connecting the upper-surface conductor and the second pad electrode. The substrate has a region mounting the antenna block, a ground pattern provided around the mounting region, first and second lands that are provided within the mounting region so as to correspond to the positions of the first and second pad electrodes, a feed line that is connected to the first land, an impedance-adjusting pattern connecting the first land and the ground pattern, and a frequency-adjusting pattern connecting the second land and the ground pattern.
摘要:
An object of the present invention is to obtain high radiation efficiency by strengthening electromagnetic coupling in an antenna device that supplies a radiation current by the electromagnetic coupling. An antenna device includes a substrate 110 and a conductor pattern that includes a radiation conductor 121, a feed conductor 122, and a coupling conductor 123 formed on the substrate 110. Both the feed conductor 122 and the coupling conductor 123 are formed on a side surface 115 of the substrate 110. One end 122a of the feed conductor 122 is connected to a feed line, and other end 122b is connected to a ground pattern. A coupling portion 122b of the feed conductor 122 is substantially U-shaped, and the coupling conductor 123 is electromagnetically coupled to the coupling portion 122b of the feed conductor 122. Because the feed conductor 122 is gently curved, an electric filed concentration can hardly occur. The length of the feed conductor 122 can be increased, and thus it is possible to obtain a strong electromagnetic coupling with the coupling conductor 123.
摘要:
An object of the present invention is to obtain high radiation efficiency by strengthening electromagnetic coupling in an antenna device that supplies a radiation current by the electromagnetic coupling. An antenna device includes a substrate 110 and a conductor pattern that includes a radiation conductor 121, a feed conductor 122, and a coupling conductor 123 formed on the substrate 110. Both the feed conductor 122 and the coupling conductor 123 are formed on a side surface 115 of the substrate 110. One end 122a of the feed conductor 122 is connected to a feed line, and other end 122b is connected to a ground pattern. A coupling portion 122b of the feed conductor 122 is substantially U-shaped, and the coupling conductor 123 is electromagnetically coupled to the coupling portion 122b of the feed conductor 122. Because the feed conductor 122 is gently curved, an electric filed concentration can hardly occur. The length of the feed conductor 122 can be increased, and thus it is possible to obtain a strong electromagnetic coupling with the coupling conductor 123.
摘要:
A surface-mounted antenna has a base having a substantially rectangular parallelepiped shape, an antenna element formed on the surface of the base and having a first radiation electrode subjected to direct power supply, and an antenna element formed on the surface of the base and having a radiation electrode subjected to capacitive coupling power supply. With this, the smaller surface-mounted antenna of a combo antenna type can be provided.