ID |
原文 |
译文 |
15195 |
最后,对人工智能的应用,从算法和伦理角度给出一定的对策。 |
Finally, we propose some approaches to generate more explainable, more robust, and more ethical AI system. |
15196 |
基于Ga As p HEMT工艺设计了一款2.3~2.7 GHz双模式低噪声射频接收前端全集成芯片。 |
A fully-integrated dual-mode low-noise RF receiver front-end for the 2. 3 GHz ~ 2. 7 GHz band was presented based on a GaAs pHEMT technology. |
15197 |
该接收前端芯片包含一个单刀双掷(SPDT)收发开关及一个带旁路功能的低噪声放大器。 |
The receiver front-end consists of a single-pole double-throw( SPDT) transmit-receive switch and a low-noise amplifier( LNA) with bypass mode. |
15198 |
一方面,采用带源级电感负反馈的共源共栅结构实现了放大器模式,将SPDT开关作为放大器输入匹配网络的一部分,一体化优化设计获得最少元件及较高Q值的输入匹配网络,进而实现低噪声、高增益和良好的输入回波损耗匹配; |
The cascode common-source structure with inductive degeneration topology is adopted to achieve the LNA. The SPDT switch is embedded into the input matching network as a concurrent design to realize high Q matching network with minimum components for low noise, high gain and superior input return loss matching. |
15199 |
另一方面,采用多组开关联合实现了旁路功能用于衰减高输入功率的射频信号。 |
Concurrent design of multiple switches for Bypass function is utilized to attenuate the high input power transmissions. |
15200 |
测试结果表明,在2.3~2.7 GHz的宽频带范围内,实现的接收前端芯片在LNA模式下的噪声系数可达到1.53~1.64 d B的较低水平,且增益在18.1~19.2 d B之间,在2.5 GHz时输入1 d B压缩点为-1.5 d Bm; |
The measurement results show that the presented FEM exhibits low noise figure of 1. 53 ~ 1. 64 dB and gain of 18. 1 ~ 19. 2 dB for 2. 3 ~ 2. 7 GHz frequency range in the high-gain LNA mode. At 2. 5 GHz, the tested input 1 dB compression point at 2. 5 GHz is-1. 5 dBm. |
15201 |
在旁路模式下,插入损耗在工作频段内维持在约6~7 d B的水平。 |
The insertion loss in Bypass mode typically varies from 6 to 7 dB in the operation frequency bands. |
15202 |
利用锁相环与多次倍频的方式设计了一个Ka波段的用于小型化交会参数探测单元的频率源。 |
In this paper, a Ka-band frequency source for miniaturization of rendezvous parameter detection unit is designed by us-ing PLL and multiple frequency multiplication. |
15203 |
该频率源输出频率为36 GHz,输出功率大于15 dBm。 |
The output frequency of the frequency source is 36 GHz and the output power is higher than 15 dBm. |
15204 |
在设计时使用数学建模的方法对锁相环各个部分进行建模,然后得到系统的传递函数,通过对闭环系统的系统函数分析,得到能够使系统稳定工作的系统参数。 |
In this design, the mathematical modeling method is used to model each part of the PLL, and then the trans-fer function of the system is obtained. Through the analysis of the system function of the closed-loop system, the system parameters that can make the system work stably are obtained. |