TRANSMITTER-RECEIVER

摘要

PURPOSE:To utilize a function hole for various functions such as adjustment of a radio equipment by making the function hole useful to the functions of the radio equipment to a ground conductor or a radiation plate. CONSTITUTION:The ground conductor 1 constituting a microstrip antenna 5 is formed by a printed circuit board having the ground face and an electronic circuit constituting a receiver or a transmitter is mounted on the upper side of the ground conductor 1 excluding the ground face. The radiation plate 2 is arranged above the ground conductor 1 via a space. A function hole 4 is made to the part of the radiation plate 2 corresponding to a variable circuit component 6. An adjustment rod 16 is inserted to the function hole 4 from the upper side to apply adjustment of the variable circuit component 6.