Abstract
Abstract The feeding of the micro-strip patch is flexible and complex, especially side feeding. In this paper, a single micro-strip patch antenna with a center frequency of 2.45GHZ is taken as an example to explore the performance of the slotted feed and non-slotted feed and verified in HFSS15.0. Combined with HFSS15.0 software simulation and theoretical calculation, the corresponding conclusions can be obtained. The theoretical value and simulation results will be shown that: the required 1/4 converter sizes of the non-slotted side feed and slotted side feed are different. By contrasting with sizes of two feeding modes, electrical size of the slotted feed is smaller. It can be known that all performances of the slotted feed are more superior.
Highlights
Antenna is a necessary component for radiating and receiving radio waves in engineering systems such as wireless communications, radio and television, navigation, satellite, radar and other engineering systems
According to comparison and analysis of the simulation results of the two feeding methods, the following conclusions can be drawn: The value of the S11 is closely related with the size of the micro-strip line, especially the width of the micro-strip line
The impact of the width play important role, the center frequency and the ideal value can be coincident by adjusting the width
Summary
Antenna is a necessary component for radiating and receiving radio waves in engineering systems such as wireless communications, radio and television, navigation, satellite, radar and other engineering systems. The stability of the antenna can be affected by micro-strip patch feeding mode. The design of the feeding system determines the current distribution of the radiation patch. Two different side feed modes of the radiation patch are analyzed and compared. By simulating the cell structure of the micro-strip patch antenna with the center frequency f at 2.45GHZ in HFSS15.0, the corresponding sizes of the 1/4 impedance converter and intrinsic impedance are different, when the feeding position is not the same place, which has been validated in HFSS15.0. The mode following the theoretical sizes calculated by given equations is simulated in HFSS15.0. The best performance of the center frequency can be achieved by adjusting the width and depth of the slotted feeding. Based on the above conditions, the minimum value of the antenna S11 can be obtained, the smaller the reflection energy is, the greater the transmission efficiency is
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