This paper presents a circular polarization plane antenna using linearly truncated triplate stripline resonator antenna. Glass-epoxy substrate is used in place of Teflon substrate for low cost fabrication. In spite the electrical dimension differs only √2 (root two), the dimensions of circular disk, its truncation, and feeding lines must be chosen precisely and accurately to get better characteristics of gain 12 dB compared to 10 dB by elliptic resonator with 4-antenna array.
This paper presents a plane antenna and array for X-band circular polarization. The novel factors of this development are elliptic resonator antenna and Glass-Epoxy substrates. High efficiency in resonance and radiation of microwave energy is expected by elliptic resonators. Easy process in fabrication is expected by Glass-Epoxy substrate. Elliptic ratios of feed- and reactance-elements are chosen independently each other. The dielectric constant εr and tan δ are 4.6 and 0.010 respectively. Enough bandwidth of axial ratio of circular polarization and directive gain are confirmed to be 15 % of central frequency and 10 dB respectively for antenna array.
Antenna technology is developing in today’s world where data transmission is main. In such environment number of different antennas is developed for near field and far field focusing. In this paper a linear feed antenna array is presented which is a sectoral horn H-plane antenna having dielectric lens of biconvex shape are placed in the aperture. Only in h-plane our antenna focuses its beam for providing high aperture and small width of linear array illumination. For the array length illumination in the other plane the field distribution is found on the array having nice agreement of 10 GHz frequency prototype. In this paper we use CST tool for simulation.
Circular Polarization Plane Array Antenna composed of Truncated Feed-and Reactance-Elements using Glass-epoxy Substrates