Symmetrical series‐fed dual‐polarised microstrip antenna lattice with odd number of radiating elements

Abstract

A concept of symmetrical microstrip antenna lattice having an odd number of radiating elements has been proposed. In the presented antenna array, all radiating elements are connected in series along both X and Y axes, which allows for generation of dual polarisation and for reduction of dissipation losses in the feeding network. The proposed approach extends the idea of the previously developed antenna lattice, in which an even number of radiating elements has been considered. This study presents the design procedure for the proposed concept, which is confirmed by simulations and measurements of the developed 5 × 5 antenna lattice operating at 5.4 GHz.

Ka-Band Single-Layer High-Efficiency Circular Aperture Microstrip Array Antenna

“…According to the proposed theory, an antenna prototype was designed, we fabricated and tested the designed antenna, and the results show that the maximum gain is 29.5 dBi at 35 GHz, which correspond to the radiation efficiency and aperture efficiency of 61.66% and 46.07%, respectively, and the impedance bandwidth of the antenna array is 34 GHz to 35.6 GHz within |S 11 |＜−10 dB. In summary, the proposed antenna array has the advantages of high efficiency, single layer, and low cost, which is an excellent candidate for millimeter-wave large-scale circular aperture array application [16][17][18][19][20][21][22].…”

“…erefore, the total parallel impedance of the two parallel branches and the main branch is 500 Ω//500 Ω//40.92 Ω � 35. 16 In order to explore the sensitivity of the power divider in Figure 4(a) to the machining accuracy, the influence of machining error on the division ratio was simulated. As shown in Figure 5(a), w is the line width of the high-resistance line, g is the distance between the high-resistance lines, and Δt is the vertical offset distance of the short-circuit ends.…”