[ANT] Can I somehow make a PCB antenna for 915 MHz more compact?

Yes. You can trade off less PCB space with slightly poorer performance but not routing the PCB antenna as straight line, but rather route back and forward in a zig-zag like pattern. This antenna type is called meander PCB antenna and several application note can be found on the web.

Last Update: August 8, 2017  

January 11, 2017   1322    Antenna Q&A