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A compact microstrip antenna with a low profile of 0.03λ is proposed to obtain a hemispherical pattern, where λ is the free-space wavelength corresponding to the operation frequency 2.4 GHz. When the side length of the ground is infinite, the 3-dB beamwidths in the xz plane and yz plane are all 180° and the radiation pattern in the xy plane has a gain fluctuation less than 3 dB. When side length of...
A CP (Circularly-polarized) wide-beam microstrip antenna is proposed. A microstrip patch crossed dipole is inset in a slot with corresponding shape. Electric current is generated on the patch dipole, and electric field is generated in the slot. The radiation originated from the electric current is horizontal-polarization, and the radiation originated from the electric field is vertical-polarization...
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