2.4 GHz Coplanar Patch Antenna with Solar Cell as Radiator for Communication and Energy Harvesting

A broadband and high‐gain differentially fed suspended plate antenna integrated with solar cells

“…The compatibility of solar cells and antennas is also a focus of research. To improve compatibility, additional filter circuits have been introduced, 13–17 which is contrary to the original intention of cost reduction and miniaturization. Based on the above discussion, the solar cell SPA with high gain and wideband has obvious advantages over previously proposed designs 1–22 …”

“…[6][7][8][9][10][11] However, the upper layer components block the solar cells 6,10 (less than 100% solar cell exposure rate), and inconsistency between the radiation direction and the light-receiving direction 7 restricts the application of solar cell antennas. To solve the problem of light blocking, the use of solar cells as the stack 13 and radiator [14][15][16][17][18][19][20][21] of the antenna has been studied. The compatibility of solar cells and antennas is also a focus of research.…”

“…Rapid development in optoelectronic devices has accelerated the integration of solar cells into wireless communication devices. In recent years, the codesign of antennas and solar cells has led to the development of smaller and lighter wireless communication devices with low power consumption and has gained considerable attention 1–22 …”

“…However, the solar cells would still serve only as energy‐harvesting parasitic components under the antennas, and their utilization would decrease due to the antenna shadow. The use of solar cells as radiators has recently gained considerable attention as a means to solve this problem 14–20 . To ensure compatibility between the solar cell DC loop and the antenna radio frequency (RF) loop, filters have been introduced 14–17 ; however, the use of additional filters limits the portability and miniaturization of the system, as well as increases its cost.…”

“…The use of solar cells as radiators has recently gained considerable attention as a means to solve this problem. [14][15][16][17][18][19][20] To ensure compatibility between the solar cell DC loop and the antenna radio frequency (RF) loop, filters have been introduced [14][15][16][17] ; however, the use of additional filters limits the portability and miniaturization of the system, as well as increases its cost. To enhance the bandwidth of the solar cell antenna, an ultra-wideband solar Vivaldi antenna was designed 21 by using amorphous silicon cells as radiators and cutting gradual edges on them to realize the Vivaldi antenna pattern.…”