Abstract: An object of the present invention is to provide a small composite antenna that is capable of operating in a plurality of different frequency bands. A GPS first loop antenna 2 is formed on a dielectric substrate 10. A VICS radio wave beacon second loop antenna 3 is formed on substantially the same axis within the first loop antenna 2. In addition, an ETC patch antenna 4 is formed in the bottom face of a recess 12 provided substantially in the center of the dielectric substrate 10. An earth pattern is formed over the whole of the underside of the dielectric substrate 10. An arc-shaped first feed pattern is electromagnetically coupled to the first loop antenna 2 so as to supply electricity thereto and cause same to operate as a right-handed circularly polarized antenna. An arc-shaped second feed pattern is electromagnetically coupled to the second loop antenna 3 so as to supply electricity thereto.
Abstract: With the object of providing a mobile wireless equipment with a multi-frequency antenna capable of performing communication with a GPS system in addition to conventional communication with mobile wireless systems, an antenna 10 for mobile wireless equipment and a GPS antenna 4 are tightened together by threading an antenna fixing nut 19 onto a holder 7 from within a casing 101, after inserting a holder 7 of the antenna 10 for mobile wireless equipment from above a through-hole 4b of the GPS antenna 4 and inserting the holder 7, which projects from below, from above into an aperture 101a of the casing 101. Also, positioning and fixing of the GPS antenna 4 are performed by engagement of claws 41, 41 formed on the GPS antenna 4 and a positioning boss 42 with claw receiving sections 43, 43 and a boss receiving section 44 formed in the upper part of the casing 101.
Abstract: A delimber (10) for removing secondary limbs from a primary limb of a tree Comprises an arm (12) arranged to extend around the primary limb. The arm is provided with cutter segments (18) oriented to cut the secondary limbs from the primary limb of the tree. The delimber also comprises a means (50, 52, 54) for moving the arm at least partly along the length of the primary limb. In use, the arm is extended around the primary limb of the tree and is then moved along the length of the primary limb, thereby cutting secondary limbs from the primary limb.