摘要:
Provided is an antenna capable of establishing electrical conductivity between a flange-like short-circuit section, of a power supply section and a thin metal plate (for example, copper foil) even in a harsh temperature environment in a space environment. Under a state in which an apical portion (31) of a power supply section (30) is inserted from an outer side of a face plate (20) into a hole (50) for the power supply section of a thin metal plate (copper foil) (21), a dielectric plate (22), and a metal plate (ring-like metal plate) (40), a plurality of screws (60) are inserted from the outer side of a flange-like short-circuit section (32) through a plurality of insertion holes (65) of the flange-like short-circuit section, (32), the thin metal plate (copper foil) (21), and the dielectric plate (22), and the plurality of screws (60) are threadingly inserted into a plurality of tapped holes (70) of the metal plate (ring-like metal plate) (40) so that electrical conductivity between the flange-like short-circuit section (32) and the thin metal plate (copper foil) (21) is established through direct contact.
摘要:
It is possible to obtain a wide-band feeder circuit a lower conductive plate provided substantially in parallel to an upper conductive plate, a short-circuit portion provided in a concave manner at a central portion of the lower conductive plate, and a countersunk portion provided in a convex manner at a central portion of a short-circuit plate forming a bottom of the short-circuit portion. It is also possible to obtain an antenna including such a wide-band feeder circuit.
摘要:
A radial line slot array antenna has a slotted conductor plate in which a plurality of slots are formed and arranged in a spiral. The plurality of slots are arranged in the slotted conductor plate such that the arrangement distance in a radial direction between the slots varies gradually between a first portion determined based on a first frequency and a second portion determined based on a second frequency that is different from the first frequency.