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Array
Figure 1 shows a 10x8 element array with uniform excitation (ten elements in the x direction an eight in the y direction). The element spacing is set to ..... |
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Array Factor
A three element array of isotropic sources has he phase and magnitude relationships shown in the figure below. The spacing between the elements is d=l/3 ......
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Dipole
A dipole with a finite length of L=0.8l is located in free space, as sketched in figure. The dipole is operated at f=250MHz and radiates the power P=6dBm . The current amplitude is I=20mA......... |
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Rectangular patch
A rectangular patch antenna is fed by a microstrip line of width w0=0.7 cm. Both, the antenna and the feed are built on a substrate with dielectric constant of e=2.55. The frequency of operation is f=2GHz, and the substrate height is h=0.6 cm........ |
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Rectangular waveguide aperture
Two identical rectangular X-band waveguide apertures operating at 32GHz in the TE10 mode, with a z-directed aperture electric field, are used as transmitting (TX) and receiving (RX) antennas in a long-distance communication link. The waveguide apertures are located in large conducting screens and are oriented as shown in the figure. The distance between the antennas is R=2Km and the radiated power is PTX=1W. The waveguide width is a=0.76 λ and the height in the z-direction is b=0.38λ........ |
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