NEAR FIELD MEASUREMENT OF ACTIVE ANTENNA SYSTEMS

摘要

Method for determining the magnitude and phase of a signal received by the active antenna (3). From the group of method steps:
ST1: only transmission (S1) of the transmission signal by the at least one transmitting antenna (6) and capture (S1_1) of a power value of the transmission signal received by the active antenna (3);ST2: only transmission (S2) of the transmission signal by the reference antenna (2) and capture (S2_1) of a power value of the transmission signal received by the active antenna (3);ST3: simultaneous transmission (S3) of the transmission signal by means of the at least one transmitting antenna (6) and the reference antenna (2) while generating superimposed transmission signals and capture (S3_1) of a power value of the superimposed transmission signals received by the active antenna (3);

a sequence of at least three method steps (ST1, ST2, ST3) is carried out in any order and in any combination, with at least one method step (ST1, ST2, ST3) being carried out multiple times, wherein the sequence of the at least three method steps (ST1, ST2, ST3) always comprises the method step ST3 at least once.

主权项

1. A method for determining the power values of a signal received by the active antenna in order to determine magnitude and the phase, comprising:
using at least one transmitting antenna and a reference antenna, wherein the reference antenna is disposed at a predetermined position and a predetermined spacing relative to the active antenna; using a signal generator to produce a transmission signal, wherein the signal generator is connected to the at least one transmitting antenna and to the reference antenna; and performing the following sequence in any order and in any combination, including performing at least one of the following multiple times: ST1: only transmission of the transmission signal by the at least one transmitting antenna and capture of a first power value of the transmission signal received by the active antenna; ST2: only transmission of the transmission signal by the reference antenna and capture of a second power value of the transmission signal received by the active antenna; ST3: simultaneous transmission of the transmission signal by the at least one transmitting antenna and the reference antenna while generating superimposed transmission signals and capture of a third power value of the superimposed transmission signals received by the active antenna; wherein performing the sequence always comprises performing ST3 at least once.