WIRELESS RELAY DEVICE

• US 20200136238A1
• Filed: 04/02/2018
• Published: 04/30/2020
• Est. Priority Date: 05/10/2017
• Status: Active Application

• Current Assignee: Fujikura Limited
• Original Assignee: Fujikura Limited
• Inventors: Iwata, Koichiro
• Application Number:
  US16/607,428
• Publication Number:
  US 20200136238A1
• Time in Patent Office: Days
• CPC Class Codes: H01L 23/66 High-frequency adaptations
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 21/29 Combinations of different interacting antenna units for giving a desired directional characteristic H01Q25/00 takes precedence
• CPC Class Codes: H01Q 25/005 providing two patterns of opposite direction; back to back antennas H01Q25/004 takes precedence
• CPC Class Codes: H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
• CPC Class Codes: H04B 7/15528 Control of operation parameters of a relay station to exploit the physical medium
• CPC Class Codes: H05K 1/028 Bending or folding regions of flexible printed circuits H05K1/0283 takes precedence
• CPC Class Codes: H05K 1/0393 Flexible materials H05K1/038 takes precedence; specific organic compositions are classified in H05K1/0313 and subgroups
• CPC Class Codes: H05K 1/189 characterised by the use of a flexible or folded printed circuit H05K3/326 takes precedence
• CPC Class Codes: H05K 2201/0141 Liquid crystal polymer [LCP]
• CPC Class Codes: H05K 2201/0154 Polyimide
• CPC Class Codes: H05K 2201/055 Folded back on itself
• CPC Class Codes: H05K 2201/10098 Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas

Abstract

An object of an aspect of the present invention is to configure a radio relay device, which is applied to radio communication carried out with use of a microwave or a millimeter wave, such that a time delay which may occur in association with radio communication relay is reduced while a transmission loss of a radio wave is prevented or reduced. A radio IC (31) and a radio IC (32) are connected with each other via a wire (41) on a substrate (11) so that a baseband signal is transmitted via the wire (41).

Claims

1. A radio relay device comprising:

a substrate;

a receiving antenna, provided on the substrate, for converting a first electromagnetic wave into a first RF signal;

a first radio IC, provided on the substrate, for converting, into a baseband signal, the first RF signal which has been obtained via the receiving antenna;

a second radio IC, provided on the substrate, for converting, into a second RF signal, the baseband signal which has been obtained by the first radio IC; and

a transmitting antenna, provided on the substrate, for converting, into a second electromagnetic wave, the second RF signal which has been obtained by the second radio IC,

the first radio IC and the second radio IC being connected with each other via a wire on the substrate so that the baseband signal is transmitted via the wire.

2. The radio relay device as set forth in claim 1, wherein the substrate is a flexible substrate and is bent so that the receiving antenna and the transmitting antenna face in respective different directions.

3. A radio relay device as set forth in claim 2, further comprising:

a first reinforcing plate which reinforces a first region of the substrate in which first region the receiving antenna and the first radio IC are provided; and

a second reinforcing plate which reinforces a second region of the substrate in which second region the transmitting antenna and the second radio IC are provided,

the substrate being bent so as to cause a ridge between the first reinforcing plate and the second reinforcing plate.

4. The radio relay device as set forth in claim 1, wherein the receiving antenna and the transmitting antenna are directional antennas having respective different maximum gain directions.

5. The radio relay device as set forth in claim 1, wherein the receiving antenna and the transmitting antenna are directional antennas having respective adjustable maximum gain directions.

6. The radio relay device as set forth in claim 1, wherein a base material of the substrate is a liquid crystal polymer.