Optimum Design of Low-Cost Dual-Mode Beam- Steerable Arrays for Customer-Premises Equipment Applications

Two novel designs of dual-mode beam-steerable array antennas are proposed for customer-

and front-back ratio of the array systems are optimized by using the method of maximum power transmission

and a sleeve of height of 1/4 wavelength underneath the monopoles. The peak gain and the front-to-back ratio

elements with a common reflector and four directors. The peak gain and the front-to-back ratio for the second

and compact size; dual-mode operation including the modes of omnidirectional radiation and directional

coverage of the azimuthal plane. It achieves higher gain than the traditional electronically steerable passive

array radiator antenna.