革命性的超宽带470-806mhz,800Wdoherty发布
如果只是提高效率,这个帖子就没有存在的必要了。
NXP的,顶起
你都知道是NXP了。是老外的。
包络跟踪难道只是提高效率吗?
强烈支持还在研发一线奋斗的同志
The World’s First (Patented) Ultra Wideband Doherty (UWB) UHF-TV Amplifier
covering the full UHF-TV Band (470-806MHz), leveraging on NXP’s unsurpassed Doherty knowledge at Application and Device level;
Eliminating the need for complex ET-Solutions or Multiple Split-Band Doherty Solutions to Achieve high PA and System Efficiency;
Typical Drain Efficiency between 40 and 45% over the full UHF-TV Band (10 – 15% Efficiency improvement compared to Conventional Class-AB full UHF-TV Amplifiers);
BLF888X transistor is optimized for Doherty Functionality and Optimum Long-Term
Reliability using State-Of-The-Art – Released for Volume Production - High Voltage
NXP LDMOS Technology;
All Planar Patented Doherty Architecture for easy of Manufacturing with Assembly
Techniques similar to Conventional Class-AB Amplifier Designs;
Pre-Distortion Characteristics verified with DVB-T UHF-TV Exciter.
不错不错
实际上发射机都是窄带的,本来意义不大
但是实际上,发射机厂家多数比较穷,研发人员不够强力,所以现实意义蛮大的。
你说这话就显得外行了!806到860mhz这段你看看现在谁在用?以前模拟电视有到860,现在还有吗?不是做不到是不需要了!版图和设计文档只会在保密协议下提供给我们的真正客户!
具体型号是哪一个?有测试结果马?或者应用笔记,谢谢
另外,电视频段是470-860MHz,他这上面才到806MHz,还差60MHz呢,这算什么革命性的技术。
回退8个dB是一个什么样的概念的?
