Center-fed grid array antennas

A Novel Microstrip Grid Array Antenna With Both High-Gain and Wideband Properties

“…The measured and the simulated |S 11 | are presented and compared in Figure 3. The comparison shows that the two sets of data are in good agreement that validates the reliability of the GA-based antenna optimization One can observe that the impedance bandwidth for |S 11 | < −10 dB is 25.6% (from 5.03 GHz to 6.51 GHz), which is much wider than that of grid array antennas introduced in previous literature [2,3,6,7,[11][12][13] and slightly larger than that achieved in our previous research [14].…”

“…In 1981, Conti et al [2] reported a microstrip version of the array, which allows the use of simple, low-cost, and accurate microstrip fabrication techniques. H. Nakano et al [3][4][5][6][7][8][9][10][11] analyzed its radiation characteristics and has introduced some extensions since the mid1990s. Sun et al [12] have utilized the microstrip grid array antenna in a highly integrated 60 GHz radio.…”

A microstrip grid array antenna optimized by a parallel genetic algorithm

“…A planar inverted-F antenna (PIFA) or microstrip patch antenna is an attractive choice for tagging metallic objects. Several papers have been published on RFID tag antenna mountable on metallic surfaces [3,4]. This article presents the small antenna with the novel feeding structure fit for an RFID tag to identify metallic objects.…”

“…Literatures investigating it are limited, e.g. Conti et al [2] reported a microstrip version of the array, and Nakano et al [3][4][5][6][7] analyzed its radiation characteristics and introduced some extensions.…”

Dual-beam radiation from a grid array antenna

“…In 1995 [2], the radiation field from the GAA was evaluated rigorously based on the current distribution obtained using the method of moments (MoM). In this case, the GAA was fed in balanced mode, which differed from Kraus' excitation mode [1].…”