I wonder if there is any benefit from squeezing one into a Portsdown for 'on the fly' monitoring of power level or just keeping one handy around the shack, especially as its good for 5.8GHz. 'May need an attenuator'.
Data sheet http://www.analog.com/en/products/ad8318.html
Uncased https://www.ebay.co.uk/itm/1-8000MHz-AD ... Sw9LlbmKek
With case and display and connectivity https://www.ebay.co.uk/itm/8GHz-1-8000M ... 3572043131
Have to say AD produce some amazing 'chips' for us to play with

Gareth