| 1. | An improved genetic algorithm and its application in e - plane waveguide filter design
面波导滤波器设计中的应用 |
| 2. | It also overcomed the dificulty to realize characteristics bpf with fractional bandwidth greater than about 5 % in the form of multi - metal insert waveguide filter
既提高了滤波器的阻带性能，又避免了单纯的多膜片结构能实现的滤波器带宽较小的缺点。 |
| 3. | At the same time , we analyse and optimize an e - plane waveguide filter , present a band - pass filter at 94ghz to satisfy the need of our frequency multiplier
同时对波导e面带通滤波器结构进行了分析优化,研制的94ghz滤波器性能良好,满足了雪崩高次倍频器的要求。 |
| 4. | A novel e - plane metal insert waveguide filter is presented in this paper . comparing to conventional e - plane waveguide filter , great improvments have been made in stop - band attenuation of a bpf
为了提高e面全金属膜片矩形波导滤波器的阻带性能，本文对滤波器的结构做了改进，采用了混合膜片的形式。 |
| 5. | The a - / 4 coupled waveguide filters are directly connected to the h - plane tee junction . and the e - plane septum filters realize millimeter - wave e - plane integrated circuit diplexers
在计算出模型的各项参数值之后，作者采用了先进的电磁场分析软件对模型进行仿真，仿真的结果证明了这些模型的正确性。 |
| 6. | The tuning process is necessary to better the filters " characteristics , as well as the matching between the waveguide filters and tee junction , both of which are arisen from the manufacture errors
根据模型加工出来的双工器，经测量发现，其性能与仿真的结果略有偏差，所以对它们进行了进一步的调试。 |
| 7. | The result shows that , the size of the coupling port has strong influence on the external quality factor of the output cavity , while the size of the coupling line and the capacitive metal rods mainly affect the tuning frequency of cutoff waveguide filter
另外，由于耦合接头相当于在截止段中引人了一个附加电感，这使滤波器谐振电路的品质因数变大，谐振峰变窄。 |
| 8. | Since the coupling line brings about an additive inductance in cutoff waveguide filter , which makes the quality factor bigger and resonant band narrower , it - mode double gap cavities are not more advantageous to achieve wider band than the single gap cavities loaded by cutoff waveguide filters
因此，模双间隙腔加载截止波导滤波器型输出回路并不比单间隙腔加载截止波导滤波器型输出回路有更好的带宽优势。 |
| 9. | Elliptical waveguides have found wide applications in a variety of microwave components : waveguide filters , radiators , resonators , and wide - band transmission lines , etc . periodic - loaded waveguides play very important roles in high - power microwave tubes , corrugated antennas and linear accelerators
在各种微波器件如滤波器、辐射器、谐振器和宽带传输线中椭圆波导有着广泛的应用。周期加载波导在高功率微波管、波纹喇叭和线性加速器等中起着重要作用。 |
| 10. | Compare to the normal rectangular waveguide , ridge waveguide has the character of broader bandwidth , smaller dimension , lower equivalent characteristic impedance , etc . because of these merits , it is used more and more widely , such as broadband ridge waveguide filter , broadband direct coupler , diplexer , frequency converter , phase shifter , ridge waveguide slot antenna array , and so on
与普通矩形波导相比，脊波导具有工作频带宽、尺寸小、等效特性阻抗低等特点。由于脊波导本身的特点，使其得到了越来越多的应用，例如宽带脊波导滤波器、宽带定向耦合器、双工器、变频器、移相器、脊波导缝隙天线阵等等。 |
