fibroblast
发表于 2025-3-25 07:03:08
Circuit Modeling of RF Tunable Devices and Their Networks,–15]. Among these modeling methods, the most accurate modeling approach to most of modeling tasks is the fitting measurement data circuit modeling method . This approach can not only model the RF tunable devices, but also accurately model complicated networks consisting of RF tunable devices.
daredevil
发表于 2025-3-25 09:52:52
Tunable Filters and Filter Frequency Automatic Control Loop, MEMS tunable capacitors is generally much higher than those of the BST varactors and digitally tunable capacitors (DTCs). On the other hand, the filters used in cellular mobile phones have size restriction as well, and most of the tunable filters discussed in these references may not be suitable for the applications in the mobile communications.
HEPA-filter
发表于 2025-3-25 15:18:32
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Anguish
发表于 2025-3-25 19:03:25
Introduction,ple for communications at anytime and anywhere in the world. The operating frequency bands for the cellular systems have been increased to over 40 bands due to the increasing demanding on the channel capacity of the mobile communication networks. To raise the mobile communication speed, a few new ce
A保存的
发表于 2025-3-25 23:23:06
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轻率的你
发表于 2025-3-26 03:35:53
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Itinerant
发表于 2025-3-26 06:17:55
Nonlinearity Analysis,o study the nonlinearity of a stand-alone tunable capacitor in a 50 Ω system, it is better to choose the connection in shunt. From nonlinearity modeling papers , we clearly know that the nonlinearity of a tunable capacitor is mainly applied voltage dependent instead of current. This is one of t
摇曳的微光
发表于 2025-3-26 12:30:37
Tunable Matching Networks,able capacitors (DTC) and the MEMS tunable capacitors are fully integrated in CMOS IC. These advantageous characteristics will position RF tunable devices to play a central role in tunable RF front ends of mobile phones and wireless transceivers. At present, the tunable impedance matching networks u
上流社会
发表于 2025-3-26 14:28:29
Tunable Filters and Filter Frequency Automatic Control Loop,t different architecture tunable filters based on using the RF tunable devices, such as references . The devices used in the filters usually need their Q factor very high, and the tunable filters in 80 % of these references, therefore, are MEMS tunable capacitor based since the Q factor of the
赏钱
发表于 2025-3-26 19:06:39
Tunable Antennas,h antennas, such as tunable PIF (planner inverted F) antennas, as the non-tunable patch antennas, can be applied in the mobile phones since their size is small. The antenna topic is very different from the topics presented in previous chapters. In antenna spec, for example, the radiation efficiency