Fixed RF attenuators are versatile components that not only provide useful level control features but can be used to enhance the return loss at the input of a mismatched component/device in the signal chain. This article explains how RF fixed attenuators are used in hopes of improving the VSWR within the signal chain.
As manufacturers move to higher frequencies, development and testing of the latest wireless systems/devices require specifically designed test systems that can emulate a complex environment with a greater mix of device types.
Over-the-air (OTA) testing, something not historically possible with past generations of wireless devices, has the potential to revolutionize wireless device testing while enabling innovative testing of both advanced antenna systems (AAS) and antenna array technology.
Wi-Fi 6E adds 6 GHz band support to Wi-Fi, expanding the 2.4 and 5 GHz ranges. JFW provides RF components and programmable attenuators for Wi-Fi 6E testing, offering control through Ethernet or RS-232, ideal for advanced testing setups.
Mismatch loads can be used to test amplifiers and help characterize their performance under conditions that might occur in the field. To do so, a mismatch load (or mismatch termination) is used to present a specified VSWR, rather than the usual 1:1 perfect 50 ohm load.
JFW has added a line of 50 Ohm solid-state RF switches that operate 20 MHz to 8 GHz. These commercially rated models are ideal for constructing low cost RF testbeds for automated testing. The switches are controlled with TTL control lines. The switches can hot switch up to +26dBm with typical isolation of 55dB at 8 GHz.
