The complex problem of disabling a vehicle/vessel or swarms of drones using high power microwave energy can be achieved with the proper application of optimized, effective RF waveforms generated from a software defined baseband modulator (containing a waveforms library), conditioned through a RF preamplifier subsystem to proper RF input drive levels, then subsequently transmitted through an optimized and efficient high power microwave transmitter subsystem into a highly accurate antenna subsystem. This is the Effects-Based Microwave Antenna (EBMA) system. A very specialized antenna system, that has the capability to transmit complex waveforms at very high power (up to 1 GW) has been envisioned for this project. Pacific Antenna Systems (PAS) has decades of experience with designing, fabricating, and testing high power microwave systems from 1 to 95 GHz and power levels from 100 kW to 20 MW. Additionally, the antenna system must be compact,(