Low-Profile Frequency-Reconfigurable Dielectric Patch Antenna and Array Based on New Varactor-Loading Scheme

Fabrication of Wideband Low‐Profile Dielectric Patch Antennas from Temperature Stable 0.65 CaTiO3–0.35 LaAlO3Microwave Dielectric Ceramic

“…[ 29 ] Meanwhile, the excellent characteristics and potential applications of DPAs have attracted the attention of more and more research teams. In the past few years, functional antennas such as filter antenna, [ 30 ] reconfigurable antenna, [ 10 ], and differential‐fed antenna [ 31 ] based on DPA have been developed by many research groups. However, most of the existing dielectric patches are based on high loss dielectric materials, [ 32 ] and the high‐power consumption of dielectric patch elements hamper further development of communication systems.…”

“…[25] Driven by the demand for miniaturized and low-cost communication systems, in order to solve the problem of highprofile and low gain of DRA, many research groups have investigated a new low-profile dielectric patch antenna (DPA). [10,26,27] DPA is one of the most promising antenna elements for wireless communication has the anisotropic property that the radiation mechanism has similar characteristics with the microstrip patch antenna (MPA). [26] To the best of our knowledge, the traditional MPA can obtain relatively higher gains than DRA.…”

“…[8] At the same time, it is also necessary to develop new antenna structures. [9,10] Among the many dielectric materials, microwave dielectric ceramics have been considered extremely critical components in many electronic products, such as filters, [11] duplexers, [12] oscillators, [13] circulators, [14] and resonators. [15] Meanwhile, In this paper, the medium dielectric constant 0.65CaTiO 3 -0.35LaAlO 3 (CTLA) composite microwave ceramic is employed to introduce in dielectric patch antennas (DPA).…”

A high gain reduced side‐lobe miniaturized frequency and pattern reconfigurable planar array operating in higher‐order mode

“…However these bulky multiport structures exhibit low antenna efficiency due to strong inter‐elemental cross coupling hence confines its performance and applications 11 . Dielectric resonator antenna (DRAs) and quasi‐planar dielectric stacked patch array (DP) is also proposed for wide frequency tuning and beam scanning application 12,13 . These 3D antennas also exhibit exceedingly low gain and limited to discrete or 1‐D beam scanning.…”

“…11 Dielectric resonator antenna (DRAs) and quasi-planar dielectric stacked patch array (DP) is also proposed for wide frequency tuning and beam scanning application. 12,13 These 3D antennas also exhibit exceedingly low gain and limited to discrete or 1-D beam scanning. In general leaky wave antennas (LWA) attain beam scanning capability with varying frequency.…”