Miniaturization of Differentially-Driven Microstrip Planar Inverted F Antenna

Planar Textile Off-Body Communication Antennas: A Survey

“…They are normally based on well characterized dielectric and conductive materials, like Rogers Duroid 5880 [8][9][10]14,[18][19][20][21][22][23][24][25], Rogers 4003 [12], Rogers 3003 [14], and F4B [16] and FR4 Microwave [26][27][28][29], which lead to consistent results between simulations and measurements. The thinness of the substrates used (between 0.5 mm and 2 mm) [8,10,12,13,16,[18][19][20][24][25][26]28,30] offers good BW and radiation efficiencies, giving some clues about their potential for textile applications. They also allow for a plethora of design alternatives to improve the EM performances, normally based on three patch shapes, like rectangular [8,9,[11][12][13]15,18,20,22,[24][25][26]29,30], circular…”

“…Recent literature on fully-grounded planar topology antennas constructed with non-textile materials show promising electromagnetic (EM) performances in terms of measured BW, maximum peak gain, radiation efficiency, and FTBR [8][9][10][11][12][13][14][15][16][17]. They are normally based on well characterized dielectric and conductive materials, like Rogers Duroid 5880 [8][9][10]14,[18][19][20][21][22][23][24][25], Rogers 4003 [12], Rogers 3003 [14], and F4B [16] and FR4 Microwave [26][27][28][29], which lead to consistent results between simulations and measurements. The thinness of the substrates used (between 0.5 mm and 2 mm) [8,10,12,13,16,[18][19][20][24][25][26]28,30] offers good BW and radiation efficiencies, giving some clues about their potential for textile applications.…”

“…The thinness of the substrates used (between 0.5 mm and 2 mm) [8,10,12,13,16,[18][19][20][24][25][26]28,30] offers good BW and radiation efficiencies, giving some clues about their potential for textile applications. They also allow for a plethora of design alternatives to improve the EM performances, normally based on three patch shapes, like rectangular [8,9,[11][12][13]15,18,20,22,[24][25][26]29,30], circular [21,23,31], and square [14,19], combined with different slotted patch configurations like linear [8,12,16,19,20,26,28,30], meandered [18], ramp [18], circular-ring [21], complex [17,22], L-shaped [29], and U-shaped [24]. Feeding techniques are also relevant w...…”

“…They also allow for a plethora of design alternatives to improve the EM performances, normally based on three patch shapes, like rectangular [8,9,[11][12][13]15,18,20,22,[24][25][26]29,30], circular [21,23,31], and square [14,19], combined with different slotted patch configurations like linear [8,12,16,19,20,26,28,30], meandered [18], ramp [18], circular-ring [21], complex [17,22], L-shaped [29], and U-shaped [24]. Feeding techniques are also relevant when they are used for textile applications-coaxial fed [11,12,14,16,17,21,[23][24][25][26]28,31], microstrip line fed [9,10,…”

“…Feeding techniques are also relevant when they are used for textile applications-coaxial fed [11,12,14,16,17,21,[23][24][25][26]28,31], microstrip line fed [9,10,22,30], microstrip inset line fed [8,9,19,20], aperture-coupled fed [13], and L-shaped line fed [15] antennas. Finally, antennas for single-band [8][9][10][11][12][13][14][15][16][17][18][19][20][23][24][25][26]28,30,31], dual-band [29], and reconfigurable bands [21,22,25] have been reported, which is sometimes also also desirable in textile applications.…”