Anritsu

Anritsu Designs Extended G-Band Planar Frequency Tripler for Broadband Instrumentation
Jon Martens
The time it takes to figure out how to do something with Microwave Office is far less than other circuit simulators on the market. It is the only circuit simulator Anritsu owns and uses.
Jon Martens
Fellow
Anritsu

Anritsu Designs Extended G-Band Planar Frequency Tripler for Broadband Instrumentation

Company

Anritsu Corporation is an innovative communications test and measurement solutions company that provides solutions for wired and wireless communication systems and operators. The company’s products include optical, microwave/RF, wireless, and digital instruments, as well as operations that support systems for research and development, manufacturing, installation, and maintenance. Offerings also include components and devices for communication products and systems.

Challenge

Broadband frequency sources are required to extend the frequency range of broadband microwave and millimeter-wave (mmWave) test equipment for applications such as 5G new radio (NR) communications, automotive radar, and security (detection) applications. In some broadband systems, nonlinear transmission line (NLTL) based multipliers and receivers have been used to extend the frequency ranges. In one example, NLTL distributed harmonic generators (DHGs) can be used to extend the continuous wave (CW) source from 54 GHz to 110/145 GHz. However, their required input drive level must be approximately +24 dBm to minimize conversion loss (and maximize output power) of the desired harmonic output tone. Overcoming these challenges requires a multiplier with lower required input drive power, broadband operation, and a balanced structure to naturally suppress the second harmonic.

Solution

The difficulty in meeting the input drive and unwanted harmonic suppression requirements for the DHG motivated Anritsu designers to develop an extended planar frequency tripler covering the entire G-band (140-220 GHz). Modeling the structure using a 3D simulator and extracting an accurate representation of the 6-port model was critical. The engineers chose Cadence AWR software for this exacting design challenge. 

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