| 1. | Dual - band mobile phone
双频手机 |
| 2. | Dual - band terminal
双频终端 |
| 3. | In this thesis , one kind of the dual - band dual - polarized antenna is mainly researched
本文就主要针对一种双频双极化天线进行研究。 |
| 4. | Using a dual - band mobile phone , which works in both the 900mhz and 1800mhz bands , will also give you a better chance of successfully contacting the 999 emergency centre
此外，双频型号的流动电话能在900兆赫及1800兆赫的波段内操作，因此，有较大机会成功联络999紧急热线中心。 |
| 5. | When all of the dual - band network equipment is made by the same manufacturer and the gsm 1800 network has reached a considerable scale , the support of gprs by both bands can be considered
当双频网络设备为同一厂家，并且gsm1800有相当的规模时，可以考虑在两个频段同时支持gprs 。 |
| 6. | The test results accord with the simulation results well . grounded on the simulation and measurement , it proves that this antenna can be the dual - band dual - polarized antenna unit
最后,对天线阵元进行组阵分析,研究了天线单元间距对天线方向图的影响,并得出了优化的天线阵元间距值。 |
| 7. | A high efficiency dual - band rf power amplifier has an output and / or input of a high frequency transistor well terminated at the second harmonic frequency for dual - band operation
本发明乃一种高效率双频射频功率放大器，提供高频电晶体的输出端与?或输入端于双频操作中有良好的二阶谐波终止。 |
| 8. | Secondly , a microstrip antenna used in portable reader and the two novel tag antennas which are a dual - band dipole antenna and a circular polarized microstrip antenna are developed
提出并研制了新型的双频段( 900mhz / 2 . 4ghz )电子标签天线、圆极化微带型标签天线以及便携式读出装置用微带天线。 |
| 9. | As the vigorous development of the mobile communication technology , the research of the dual - band dual - polarized antenna is very urgent . it is also of theoretical significance and practical value
随着移动通信技术的发展,对双频双极化基站阵列天线的研究就变得十分迫切,同时也具有理论意义和实用价值。 |
| 10. | Thirdly , based on the analysis of the microstrip antenna above , the dual - band dual - polarized antenna is designed and simulated . the simulation results meet the results of the requirement of the antenna design
在以上对微带天线分析的基础上,对双频双极化天线单元进行了设计与仿真,仿真结果较好的达到了天线设计要求。 |
