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This paper presents double-band stacked patch antenna intended for implementation in satellite navigation systems. Antenna frequency operation band covers GLONASS L1 and L2 frequencies and GPS L1 frequencies. Two antenna variants are described - with a separate feed for each frequency band and with a shared feed. Simulation and experimental results are described.
In the paper the design and simulated features of antenna intended for on-body UHF RFID application are proposed. Effects of antenna dimensions and material properties are studied and the optimal design is chosen. The antenna is matched to the chip with impedance 73-i113 Ohm. It is shown that the antenna when attached onto the human body is operable within the frequency range 866-956 GHz that covers...
The frequency dependences of the reflection and absorption factors of electromagnetic waves are calculated and discussed for the case with the plate, which consists of the dielectric matrix with included spherical-shape single-domain magnetic particles. Two directions of external dc magnetic field, i.e. normal direction and in the plate surface plane are considered.
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