Abstract
An efficient beamforming algorithm for large-scale phased arrays with lossy digital phase shifters is presented. This problem, which arises in microwave power transmission from solar power satellites, is to maximize the array gain in a desired direction with the gain loss of the phase shifters taken into account. In this paper the problem is first formulated as a discrete optimization problem, which is then decomposed into element-wise subproblems by the real rotation theorem. Based on this approach, a polynomial-time algorithm to solve the problem numerically is constructed and its effectiveness is verified by numerical simulations.
| Original language | English |
|---|---|
| Pages (from-to) | 783-790 |
| Number of pages | 8 |
| Journal | IEICE Transactions on Communications |
| Volume | E97-B |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering