Wireless transmitter

Abstract

Abstract PURPOSE:To give omnidirectivity to a radio wave signal radiated from a wireless transmitter side ot a receiver side by forming an excessive conductive pattern to a main body oscillating circuit section and radiating other polarized wave component than a polarized wave component of the radio wave signal radiated from a loop antenna by means of the conductive pattern. CONSTITUTION:A transmitter circuit section 1 built in a wireless transmitter consists of a self-exciting circuit section 11, a high frequency amplifier section 12 and an antenna section 13 and the conductor pattern formed to the oscillation circuit section 1 is arranged to the circuit board 100. The excessive conductor pattern 14 painted out by the black part on the surface of the circuit board 100 radiates other radio wave than the polarized wave component of a loop antenna 104. Then the polarized wave component different from the polarized wave component of the radio wave radiated from the loop antenna is easily radiated, the radiation characteristic is made omnidirective to ensure the transmission area over a wide range.

Inventors

• 👤 Akihiko Hasegawa
• 👤 明彦 長谷川
• 👤 Yoichi Isobe
• 👤 洋一 磯部
• 👤 Hiroshi Nakajo
• 👤 浩 中条
• 👤 Koichi Okumura
• 👤 浩一 奥村

Bibliographic Details