Patent ID: 7245832

Claim:
A radio communication apparatus comprising: a plurality of radio signal reception boards adapted to receive radio reception signals from communication channels, wherein each radio signal reception board demodulates the received radio reception signals into first electric signals, and each radio signal reception board comprises thereon a first photoelectric conversion element that converts the first electric signals into first optical signals; a plurality of reception signal processing boards; and an optical transmission section adapted to optically transmit the first optical signals emitted by the first photoelectric conversion element of each radio signal reception board to the plurality of reception signal processing boards, wherein: each reception signal processing board processes the first optical signals received from the optical transmission section; the optical transmission section comprises one sheet-shaped optical bus comprising: a light guide passage; a plurality of reflection portions, each reflection portion optically reflecting the first optical signals, which are incident thereon and are input from the first photoelectric conversion element of the corresponding radio signal reception board, towards a predetermined direction; and a diffusion reflection plate that reflects the first optical signals reflected by the reflection portions while diffusing the reflected first optical signals, and the diffusion reflection plate is disposed on one end of the light guide passage to face the reflection portions.