Design and analysis of reconfigurable fractal antenna with RF-switches on a flexible substrate for X-band applications

Recent Advances in Flexible RF MEMS

“…At present, some progress has been made in the research of various functional flexible RF MEMS, mainly in flexible RF MEMS switches [ 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 ], phase shifters [ 76 , 77 , 78 ], reconfigurable antennas [ 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 ] and phased array antennas [ 87 , 88 , 89 , 90 ] based on them, in MEMS resonators [ 91 , 92 , 93 , 94 , …”

“…There are also some flexible reconfigurable antennas based on MEMS switches that are applied to various conformal application scenarios, such as reconfigurable and conformal patch antennas [ 82 ], reconfigurable and conformal patch antennas for body wireless communications [ 84 ], reconfigurable antennas based on RF switches in satellite communications [ 85 ], and reconfigurable antennas on flexible substrates for X-band [ 86 ], flexible lightweight multi-layer 16 × 16 antenna arrays [ 89 ]. However, these reconfigurable conformal antennas are not completely flexible systems, in which the MEMS switch is integrated with a rigid substrate; however, thanks to the small size of the switch, it has little impact on the flexible application of the entire antenna array.…”

“…At present, some progress has been made in the research of various functional flexible RF MEMS, mainly in flexible RF MEMS switches , phase shifters [76][77][78], reconfigurable antennas [78][79][80][81][82][83][84][85][86] and phased array antennas [87][88][89][90] based on them, in MEMS resonators [91][92][93][94][95][96][97][98][99][100][101][102][103], frequency selective hyper surfaces [104], etc.…”

Low Profile Hybrid Frequency and Polarization Reconfigurable Bunny Patch Antenna for S-band Applications

“…The polarization reconfigurability [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] and frequency reconfigurability [18][19][20][21][22][23][24][25][26][27][28] was achieved electronically using RF-PIN diodes , varactor diodes, MEMS switches and mechanically by using a meta-surface [15][16], [31] . Very few literatures are available which emphasizes on the working hybrid reconfigurable antennas [29][30][31][32][33][34][35] .…”

“…For frequency reconfigurability, a square shaped antenna with partial ground was designed in [24]. In , [25] an elliptical shaped factral reconfigurable antenna using MEMS was defined . A planar Inverted -F Antenna for frequency reconfigurability presented [26].…”