Patent ID: 11909499
Assignee: AMOTECH CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A transmitting and receiving antenna system of a repeater for a Low-power wide-area network (LPWAN) comprising;
a first antenna and a second antenna that selected to an antenna for transmitting according to a user's setting;
a switch coupled to each of the first antenna and the second antenna;
a third antenna for receiving;
a RF transmitter connected to the first antenna and the second antenna through the switch;
a RF receiver connected to the third antenna for receiving; and
a controller for controlling the RF transmitter and the RF receiver through switching of the switch,
wherein the first antenna is a dipole antenna having multiple directivities, the second antenna is a directional patch antenna, and the third antenna is an omni-directional antenna,
wherein the controller includes a phase controller for controlling the direction of the second antenna, and
wherein the phase controller of the controller includes an analyzer analyzing a Received Signal Strength Indicator (RSSI) of the signal received in response to a pilot message including a response request message, a generator generating a control signal to change the position angle of the second antenna with n-th order as amount of an allowable angle, transmitting the pilot message including the response request message in a uplink direction after changing a position angle of the second antenna, generating a control signal for controlling the directivity of the second antenna based on the information analyzed by the analyzer.