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PCB0045 Vivaldi Broadband Antenna

PCB0045 Vivaldi Broadband Antenna

This functional 10cm “tile” sized Vivaldi antenna works well from about 1500 MHz to 7 GHz. It has forward gain averaging 4 to 6 dBi along its main axis. From 7 to 18 GHz it also displays forward gain, although the main “beam” breaks up and peak gain is not right along the +Z axis. This effect can be seen by comparing the 3D gain plots at 3800 MHz and 15 GHz below. Please note, full 3D plots are available at all 1671 test frequencies! A 1300 MHz to 18 GHz forward (and peak) gain graph is also shown below.

This antenna is fed by a standard “5-pin” PCB mounted right-angle SMA jack, oriented away from the back of the antenna as shown.

A full Excel spreadsheet 3D gain results report can be downloaded HERE. This extensive test program covers full 3D spherical gain patterns at 1671 stepped frequencies from 1300 MHz to 18 GHz in 10 MHz steps. The test report details higher level performance data, such as: Forward Gain, Peak Gain, Radiation Efficiency, and VSWR/Return-Loss vs Frequency.

The full set of 1671 spherical plot-files can be downloaded HERE in “zipped” format. Unzip and use this plot-file along with our downloadable 3D plotting software HERE. Then create rotate-able/scale-able 3D plots on your own desktop at any test frequency.

Please remember – We can test your antenna project too! We have a full range of testing services listed HERE 

We hope you enjoy your sample antenna. We do not offer antenna design services here so that we may focus customer design confidentiality. These “biz card” antennas are just for fun, and they are not for sale.