A Triple Band Bow Tie Array Antenna Using Both-sided MIC Technology

Abstract

<span>A single-fed linearly polarized 2x2 microstrip bow tie array antenna is proposed. The feed network has microstrip line and slot line where microstrip-slot branch circuit is connected in parallel. The feed network of the array is designed using both-sided MIC Technology to overcome the impedance matching problem of conventional feed networks. The 2x2 half bow tie array antenna is also truncated with spur lines for optimization of antenna performance. The array antenna unit can be realized in very simple and compact structure, as all the antenna elements and the feeding circuit is arranged on a Teflon glass fiber substrate without requiring any external network. The design frequency of the proposed antenna is 5 to 8 GHz (CBand) and the obtained peak gain is 12.41 dBi. The resultant axial ratio indicates that linear polarization is achieved. </span>

RF Energy Harvesting Using High Impedance Asymmetric Antenna Array Without Impedance Matching Network

“…Recently, various printed rectenna designs operating at 2.45 GHz are reported in literature (Khan et al., 2020; Koohestani et al., 2020), which shows the significance of this frequency band for RF energy harvesting. Based on the microstrip‐slotline transition, a feeding network is applied in the antenna array (Alvina et al., 2018; Egashira et al., 2004; Rahman et al., 2015; Zhai et al., 2012). The methods for designing a high impedance antenna are discussed in Section 2.…”