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- W2749652806 abstract "In thisstudy, we constructed a 4-element linear array antenna using four 20 GHz bandmicrostrip patch antennas with a structure such that the signal is fed to thepatch antennas from open-end coplanar waveguides without contact. Weinvestigated factors related to the design of linear array patch antennas. To adjustthe maximum radiation direction and reduce return loss, we optimized thespacing between the elements and their shape. With an element spacing of 11.50mm, patch width of 3.90 mm, and patch length of 4.15 mm, we obtained aresonance frequency of 20.05 GHz and a return loss of -29.59dB at the resonance frequency. However, in the case of a 4-element linear arrayantenna structure, undesired resonances occurred in frequency bands other thanthe design resonance frequency band of 20 GHz. To suppress these undesired resonancesand obtaining stable operation at the design frequency, we propose a newstructure in which the feed line isloaded with a short stub, and show through computer simulations that theoccurrence of undesired resonances can be sufficiently suppressed. Furthermore,we demonstrate the problem of radiation gain reduction caused by introducing ashort stub, propose a design method for a new structure in which the feed line has slits between thestubs, and show improvement of the antenna gain by 0.5 dBi." @default.
- W2749652806 created "2017-08-31" @default.
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- W2749652806 date "2017-01-01" @default.
- W2749652806 modified "2023-09-24" @default.
- W2749652806 title "A Linear Array Antenna of Microstrip Patch Antennas Fed by the Open-End of Coplanar Waveguides" @default.
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- W2749652806 doi "https://doi.org/10.4236/wet.2017.82003" @default.
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