Signal combining apparatus
First Claim
1. A radio frequency (RF) signal combining apparatus comprising:
- an input port for receiving an input signal from a signal generator;
an output port for outputting a signal to a signal analyser;
a plurality of test ports for connecting the apparatus to a plurality of devices under test (DUTs), the apparatus further comprising;
a splitter for dividing a signal received at the input port into a plurality of signals;
a plurality of transmit signal paths, each of the plurality of transmit signal paths comprising a switchable gain stage, the switchable gain stage comprising an amplifier and an attenuator and being operative selectively to connect an input of the gain stage to either the amplifier or the attenuator, such that the input signal is either amplified or attenuated by the gain stage;
a plurality of receive paths;
a signal relay, the signal relay being configured to receive one or more signals through one or more of the plurality of receive paths and to output a single composite signal to the output port, the single composite signal output to the output port containing the signals received from the one or more of the plurality of receive paths wherein the apparatus further comprises a plurality of duplex combiners which are each configured to;
receive a signal from one of the plurality of transmit paths;
transmit the signal from the one of the plurality of transmit paths to one of the plurality of test ports;
receive a signal from one of the plurality of test ports; and
transmit the signal received from the one of the plurality of test ports to one of the plurality of receive paths.
3 Assignments
0 Petitions
Accused Products
Abstract
The present application relates to a signal combining apparatus having an input for receiving a signal from a signal generator and an output for outputting a signal to a signal analyzer. The input signal is split into a plurality of identical signals by a splitter and the signals are transmitted, to inputs a plurality of duplex combiners, each of which has an input/output port to which a device under test can be connected. Outputs of the duplex combiners are connected to a plurality of receive paths, whose outputs are connected to a signal relay which is operative to receive one or more signals received through the receive paths. An output of the signal relay is connected to the output of the signal combining apparatus, such that a composite signal output by the signal relay containing the signals received through the receive paths can be analyzed by the signal analyzer.
10 Citations
14 Claims
-
1. A radio frequency (RF) signal combining apparatus comprising:
-
an input port for receiving an input signal from a signal generator; an output port for outputting a signal to a signal analyser; a plurality of test ports for connecting the apparatus to a plurality of devices under test (DUTs), the apparatus further comprising; a splitter for dividing a signal received at the input port into a plurality of signals; a plurality of transmit signal paths, each of the plurality of transmit signal paths comprising a switchable gain stage, the switchable gain stage comprising an amplifier and an attenuator and being operative selectively to connect an input of the gain stage to either the amplifier or the attenuator, such that the input signal is either amplified or attenuated by the gain stage; a plurality of receive paths; a signal relay, the signal relay being configured to receive one or more signals through one or more of the plurality of receive paths and to output a single composite signal to the output port, the single composite signal output to the output port containing the signals received from the one or more of the plurality of receive paths wherein the apparatus further comprises a plurality of duplex combiners which are each configured to; receive a signal from one of the plurality of transmit paths; transmit the signal from the one of the plurality of transmit paths to one of the plurality of test ports; receive a signal from one of the plurality of test ports; and transmit the signal received from the one of the plurality of test ports to one of the plurality of receive paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification