Primary study on spatial powers combining of parallel and intersectant beams of high power microwave

Considering that the phases are hard to controll accurately for the high power microwaves, the spatial powers combining of both parallel beams and intersectant beams is investigated. It is concluded that when a small solid angles range adjacent to the main direction in the far field is considered, the parallel beams combining of compact antenna arrays has its priority if the phases can be controlled,and the parallel beams combining of sparse antenna arrays has its priority if the phases can not be controlled. When a small area in the far field is considered, the parallel beams combining of compact antenna arrays has its priority if the phases can be controlled, and the intersectant beams of sparse antenna arrays has its priority if the phases can not be controlled. On the account of the en