Planar antennas and miniaturization techniques
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In this book, in order to miniaturize planar antennas, we have used the following techniques: the first technique consists in loading a rectangular dielectric resonator antenna (ARDR) with a BST material of very high dielectric permittivity, and we are interested in the modeling and electromagnetic analysis of the antenna before and after stacking with this material. The proposed antenna operates around 2.31 GHz and provides an impedance bandwidth of 20 MHz. The second miniaturization technique used is the ground plane defect structure (GDS), where two microstrip antennas have been fabricated;...
In this book, in order to miniaturize planar antennas, we have used the following techniques: the first technique consists in loading a rectangular dielectric resonator antenna (ARDR) with a BST material of very high dielectric permittivity, and we are interested in the modeling and electromagnetic analysis of the antenna before and after stacking with this material. The proposed antenna operates around 2.31 GHz and provides an impedance bandwidth of 20 MHz. The second miniaturization technique used is the ground plane defect structure (GDS), where two microstrip antennas have been fabricated; the first antenna has a narrow bandwidth (272 MHz), while the second, which has a smaller patch area and an overall size of 10 × 6 mm², has a wide bandwidth (greater than 1 GHz). To validate the numerical results, measurements were carried out, with satisfactory results. The three projects discussed clearly demonstrate the importance of these two techniques in the miniaturization of planar antennas.
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