… antennas are suggested for overcoming the omni-directional antennas' drawbacks. The
directional antenna is a type of antenna which is called as the beam antenna, which receives or …

… element antenna. We have found the last type to be the most suitable for wireless sensor
networks, … of a prototype antenna for the 2.4-GHz ISM band, the SPIDA: SICS Parasitic Inter- …

… In recent years, rapid development of directional antenna technologies has made it possible
… In this article, we analyze network capacity for wireless sensor networks by using directional …

… wireless sensor networks may be established using either omnidirectional or directional
antennae… Regardless of the type of antenna being used the transmission cost of each antenna is …

… using directional antennas in wireless sensor networks. We have found that using directional
… where Gi is the gain of an ideal omni-directional antenna (isotropic) and we assume that …

… patch antenna In light of the above considerations, we propose a switched beam directional
antenna that satisfies the size, cost and complexity constraints typical of a sensor node. The …

… DIRECTIONAL ANTENNA MODELS Directional antenna systems enable a significant
improvement in the capacity and connectivity of ad hoc networks since … Furthermore, directional …

… and outdoor wireless networks. Compared with an omni-directional antenna, a directional
antenna can … Thus, using directional antennas in wireless networks allows more concurrent …

… for messages by directing their antennae towards a specific … the directional antennae
can be rotated by the sensors as … profile whereby sensors employ directional antennae with …

… network connectivity while considering various antenna models and the channel randomness.
Since existing directional antenna … a new analytical directional antenna model called the …