Antennas for Compact Communication Systems

摘要

The most important problems of nowadays compact communication systems are not only for the higher total radiation power (TRP), but also for the higher total isotropic sensitivity (TIS). The TIS of communication systems will be degraded by the electromagnetic interference (EMI) from other active parts of print circuit board (PCB). The smaller the size of compact communication system is, the serious problem of EMI will happen at receiver. Due to the EMI problem, the sensitivity of communication system will be degraded. In this paper, various kinds of small antennas are designed and developed for the compact size of communication systems. The antenna design should consider the compact size of communication system. The simulation tool for designing the antenna inside the compact size of communication system is by using commercial available General Electromagnetic Simulation (GEMS) [1]. The measurement results of TRP and TIS for various kinds of antenna and developed antenna for the compact communication system are compared.