The new structure dual-band printed quasi-Yagi antenna
There is the new dual-band quasi-Yagi antenna with a plated hole presented in this article. The antenna works in two non-adjacent bands, and its topology could be changed by p-i-n-diodes commutation due to using the plated hole. The antenna was designed for using in different telecommunication systems with linearly polarized radio waves. The principle of work is described and features of its design are shown. There are Russian standard radio components used to construct the antenna (the antenna is based on Russian standard dielectric FAF-4). Results of modeling of the described antenna on means of the specialized computer program are given. The results contain the next parameters: pattern formation at low and high frequency bands, S <sub>11</sub>-parameter graph at low and high frequency band. The presented results were analyzed and after that conclusion about application of this antenna in the field of radio engineering was made.