A Log-Periodic Antenna for Long Range Communication Within a Wireless Sensor Network System for Sea Water Quality Monitoring

In this paper the design of a printed log-periodic antenna for long range communication within a wireless sensor network system for sea water quality monitoring is presented. The difficulties in using the design procedure for log-periodic dipole antennas proposed by Carrel are discussed and some limitations are pointed out. New design hints are given and a preliminary example of a printed antenna is presented. Simulations are carried out not only for free-space but also in presence of sea and wave motion. Resuts show that printed log-periodic is actually a good candidate for the intended application.