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天线家族之矩形微带天线
2013-5-3 20:30
今日头条
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- In this section, we'll discuss the microstrip antenna, which is also commonly referred to as the patch antenna. The rectangular patch antenna is analyzed, and ...
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天线家族之小环天线
2013-5-3 20:28
今日头条
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- The small loop antenna is a closed loop as shown in Figure 1. These antennas have low radiation resistance and high reactance, so that their impedance is diffic ...
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天线家族之折叠偶极子
2013-5-3 20:26
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- A folded dipole is a dipole antenna with the ends folded back around and connected to each other, forming a loop as shown in Figure 1.
Figure 1. A Folded Dipol ...
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天线家族之单极子
2013-5-3 20:25
今日头条
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- A monopole antenna is one half of a dipole antenna, almost always mounted above some sort of ground plane. The case of a monopole antenna of length L mounted ab ...
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天线家族之宽带偶极子
2013-5-3 20:23
今日头条
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- A standard rule of thumb in antenna design is: an antenna can be made more broadband by increasing the volume it occupies. Hence, a dipole antenna can be made m ...
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天线家族之半波偶极子The Half-Wave Dipole Antenna
2013-5-3 20:20
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- The half-wave dipole antenna is just a special case of the dipole antenna, but its important enough that it will have its own section. Note that the "half-wave ...
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天线家族之偶极子The Dipole Antenna
2013-5-3 20:17
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- In this section, the dipole antenna with a very thin radius is considered. The dipole antenna is similar to the short dipole except it is not required to be sma ...
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天线家族之短偶极子Short Dipole Antenna
2013-5-3 20:14
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- The short dipole antenna is the simplest of all antennas. It is simply an open-circuited wire, fed at its center as shown in Figure 1.
Figure 1. Short dipole ...
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天线基础之为何天线可以辐射?Why do Antennas Radiate?
2013-5-3 14:10
今日头条
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- Obtaining an intuitive idea for why antennas radiate is helpful in understanding the fundamentals of antennas. On this page, I'll attempt to give a low-key expl ...
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天线基础之天线温度Antenna Temperature
2013-5-3 14:08
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- Antenna Temperature () is a parameter that describes how much noise an antenna produces in a given environment. This temperature is not the physical temperature ...