Abstract: Provided is a patch antenna, an antenna unit and an antenna apparatus that can increase the directional gain of a patch antenna at a high angle of elevation and that can make the directional gain of a patch antenna at a given angle of elevation uniform at all azimuth angles. Patch antenna 11 has patch antenna main body 40 having antenna electrode 43 on its top surface, and a waveguide 60 mounted on the top surface of patch antenna main body 40. Waveguide 60 has top plate 62 having a larger flat surface than patch antenna main body 40 and having L-shaped slot 621 on the flat surface, and spacer 61 provided between the top surface of patch antenna main body 40 and top plate 62 and separating antenna electrode 43 and top plate 62 a predetermined distance apart.

Abstract: An antenna device includes an antenna, the antenna including an antenna element, a circuit board, and a planar metallic holder disposed between the antenna element and the circuit board. The antenna device further includes an antenna case accommodating the antenna, and the antenna case include a top cover and a bottom plate serving as a base. The metallic holder supports the antenna element on the base, and includes a flat-shaped portion mounting a bottom surface of the antenna element and a plurality of tabs extending upwards from peripheral edges of the flat-shaped portion. The plurality of tabs includes a pair of front tabs and a pair of rear tabs, and a distance between the pair of front tabs is shorter than a distance between the pair of rear tabs.

Abstract: An antenna apparatus is provided with an antenna cover formed so as to widen toward the rear and to rise in a streamlined shape toward the rear along the longitudinal central axis, an antenna base to which the antenna cover is attached in a watertight fashion, and an antenna section accommodated in a space formed by the antenna cover and the antenna base. The antenna section is set upright on the antenna base, and has a configuration in which an antenna wire of predetermined length corresponding to a frequency band of medium frequency wave to very high frequency wave is wound vertically at a predetermined inter-wire pitch around a winding member accommodated in a space corresponding to the raised section of the antenna cover.

Abstract: Provided is a patch antenna, an antenna unit and an antenna apparatus that can increase the directional gain of a patch antenna at a high angle of elevation and that can make the directional gain of a patch antenna at a given angle of elevation uniform at all azimuth angles. Patch antenna 11 has patch antenna main body 40 having antenna electrode 43 on its top surface, and a waveguide 60 mounted on the top surface of patch antenna main body 40. Waveguide 60 has top plate 62 having a larger flat surface than patch antenna main body 40 and having L-shaped slot 621 on the flat surface, and spacer 61 provided between the top surface of patch antenna main body 40 and top plate 62 and separating antenna electrode 43 and top plate 62 a predetermined distance apart.

Abstract: An antenna includes an antenna element, a circuit board, and a planer metallic holder disposed between the antenna element and the circuit board. The metallic holder supports the antenna element on a base.

Abstract: A complex antenna device includes: an antenna base having a main surface and first and second ends opposed to each other; a bar antenna including a metal body and disposed upright on a side of the first end of the antenna base; at least one planar antenna mounted on the main surface of the antenna base between the first and second ends of the antenna base; a metallic member provided on a side of the second end of the antenna base so as to substantially remove physical influence of the bar antenna on the planar antenna.

Abstract: In addition to an FM reception antenna element for receiving an FM radio wave and an FM receiver connected to the FM reception antenna element, a mobile object is provided with a first antenna element for receiving a satellite signal, a signal processing unit connected to the first antenna, and a second antenna element connected to the signal processing unit. The signal processing unit processes the satellite signal into an FM signal. The second antenna element emits the FM signal as the FM radio wave that may be received in the FM reception antenna and processed by the FM receiver in the manner known in the art.

Abstract: An antenna element includes a dielectric board, a first antenna radiation electrode formed on a top surface of the dielectric board at an outer region, a second antenna radiation electrode formed on the top surface of the dielectric board at a central portion, a ground electrode formed on a bottom surface of the dielectric board, a feeding pattern formed on the side surface of the dielectric board for feeding to the first antenna radiation electrode by electromagnetic coupling, and a feeding pin having an end connected to the second antenna radiation electrode. A combination of the first antenna radiation electrode, the ground electrode, and the feeding pattern serves as a first antenna portion for receiving a first radio wave. A combination of the second antenna radiation electrode, the ground electrode, and the feeding pin serves as a second antenna portion for receiving a second radio wave.

Abstract: In a portable electric apparatus comprising a radio tuner, an optical disc drive, a casing, and an antenna, the apparatus further comprises a lid arranged on a top surface of the casing. The lid is openable for taking the optical disc into and out from the optical disc drive. The antenna is mounted to the lid. An earth plate electrically connected to the antenna is mounted to the lid.

Abstract: In an antenna unit including an antenna and a bottom plate, a unit fixing member is disposed between the antenna and the bottom plate. The unit fixing member is adapted to provisionally fix the antenna unit onto a mobile object and to fix the antenna onto the bottom plate.

Abstract: A complex antenna device includes: an antenna base having a main surface and first and second ends opposed to each other; a bar antenna including a metal body and disposed upright on a side of the first end of the antenna base; at least one planar antenna mounted on the main surface of the antenna base between the first and second ends of the antenna base; a metallic member provided on a side of the second end of the antenna base so as to substantially remove physical influence of the bar antenna on the planar antenna.

Abstract: An antenna unit includes an antenna module that receives radio waves sent from a satellite or earth, a cover member that has enough inner space to house the antenna module and has an opened bottom surface, and a bottom plate that closes the opened bottom surface of the cover member, and the antenna unit is attached to a resin-made attachment part. A metal sheet is provided on a back surface side of the resin-made attachment part, and the antenna unit is adhesive bonded and fixed on a surface side of the resin-made attachment part correspondingly to an arrangement position of the metal sheet.