| The paper designs a resistance-loaded, C-shaped slot embedded in a ring dual-frequency microstrip patch antenna through the design of the C-shaped slot embedded in a circular dual-frequency microstrip patch antenna and the C-shaped slot embedded in a ring dual-frequency microstrip patch antenna according to a fuze project, and based on the elementary analyzing and discussing to the multi-frequency art, compact art and broadband frequency art of the microstrip antenna, and using the software of Zeland named IE3D which is an electromagnetic simulation software, hereafter, designing a resistance-loaded, C-shaped slot embedded in a ring tri-frequency microstrip patch antenna answer for the requirement of the project according to the design idea of the dual-band antenna.The dual-band antenna can be operated at the center frequency fl=1.49GHz and fH=1092GHz, and the tri-frequency antenna can be operated at the center frequency fl =1.40GHz,fm = 1.83G/Hz and fh = 1.98G/Hz, the relative bandwidth of the each frequency band is between 2.2% and 5.0%, and it is very suitable for the antenna's operation of multi-frequency and frequency hopping. Also the antenna can be operated in occasions of either tri-frequency band or dual-frequency band, and it's very significant to enhance the system's anti-jamming capability. |
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