Optimal antenna currents for Q, superdirectivity, and radiation patterns using convex optimization
Publikation/Tidskrift/Serie: IEEE Transactions on Antennas and Propagation
Dokumenttyp: Artikel i tidskrift
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.
The high Q-factor (low bandwidth) and low efficiency make the design of small antennas challenging. Here, convex optimization is used to determine current distributions that provide upper bounds on the antenna performance. Optimization formulations for maximal gain Q-factor quotient, minimal Q-factor for superdirectivity, and minimum Q for given far-fields are presented. The effects of antennas embedded in structures are also discussed. The results are illustrated for planar geometries.
- Electrical Engineering, Electronic Engineering, Information Engineering
- small antennas
- convex optimization
- Electromagnetic theory-lup-obsolete
- ISSN: 0018-926X