US 12,761,257 B2Granted

RF characteristic measurement method and system

AssigneeMiliwave Co., Ltd.

InventorsSeung Hyun Rha, Yung Ha Han, Ho Sun Lee

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Abstract

Disclosed is an RF characteristic measurement system comprising: a shield box in which a DUT accessing a network on mobile by using an access point antenna and an antenna module is provided, which receives an RF signal of the AP antenna; a test device for generating the RF signal to be transmitted to the DUT, and measuring the RF characteristic of the DUT by using an RF characteristic signal received from the DUT; and a control device for controlling the operation of the DUT and the operation of the test device, wherein the test device includes: an attenuator for adjusting the output power of the RF signal to be input into the DUT; a transmission/reception path separator, which is electrically connected to the AP antenna and separates transmitted/received RF signals from each other; and an AP board, which is electrically connected to the attenuator and the transmission/reception path separator.

Claims14

Dependent claims

A radio frequency (RF) characteristic measurement system comprising:

a shield box in which an access point (AP) antenna and a device under test (DUT) accessing a network via a mobile connection using an antenna module configured to receive an RF signal of the AP antenna are provided;
a testing apparatus configured to generate an RF signal to be transmitted to the DUT and measure RF characteristics of the DUT using an RF characteristic signal received from the DUT;
and
a control device configured to control an operation of the DUT and an operation of the testing apparatus, which are necessary for measuring the RF characteristics of the DUT,
wherein the testing apparatus comprises:
an attenuator configured to adjust an output power of the RF signal to be input to the DUT;
and
an AP board electrically connected to the attenuator and configured to operate as an AP for the DUT,
wherein the testing apparatus further comprises an optical communication interface for communication between the AP antenna and the attenuator and communication between the attenuator and the AP board, and
wherein the testing apparatus further comprises a first interface for controlling the DUT and a second interface for controlling the DUT and the testing
apparatus and the first interface and the second interface are implemented as interfaces having a throughput less than a maximum throughput of supportable modulation coding scheme (MCS), regardless of the maximum throughput of the supportable MCS.

8 more elements

A radio frequency (RF) characteristic measurement method performed by an RF characteristic measurement system, comprising the steps of:

establishing a network connection environment for a device under test (DUT) using an access point (AP) board;
connecting the DUT to a network using the AP board;
and
measuring RF characteristics of the DUT through a control process of the AP board which comprises a memory configured to store a program of an RF characteristic measurement function and a processor capable of executing the program,
wherein the step of establishing the network connection environment for the DUT comprises establishing communication lines between the DUT and the AP board, and between the AP board and a control device, using interfaces having a throughput less than a maximum throughput of supportable modulation and coding scheme (MCS), regardless of the maximum throughput of the supportable MCS.

2 more elements

Dependencies are inferred from the claim text.