HeardStrong LLC required an antenna for deployment within a cow bolus to transmit telemetry such as internal temperature, which can be used to predict any change in the health of cows so that it can be dealt with immediately.
The bolus antenna was designed to possess the correct operating frequency (915 MHz) when placed inside of the animal. Below is the HFSS proof of concept design with an SMA connector.
Next is the prototype fabricated from HFSS output:
The radiation pattern produced by the cow bolus antenna predicted with HFSS is shown below:
The final product: