With the increasing of the period, microwave frequency decreases.

随着周期的增大，微波频率降低。

youdao

First, the concept of LHM and the methods to realize it in microwave frequency band are introduced.

首先介绍了左手材料的基本概念，左手材料在微波频段的实现方法。

youdao

Negative refractive index materials are artificial materials with permittivity and permeability both negative within certain microwave frequency band.

负折射率媒质是一种人造媒质，在某一微波波段内其介电常数和磁导率同时为负值。

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So that's the important take-away message from this slide. If we think about these different types of lights, microwave light, if it's absorbed by a molecule, is a sufficient amount of frequency and energy to get those molecules to rotate. That, of course, generates heat, so that's how your microwaves work.

重要的信息，如果我们看看,这些不同种类的光，微波,如果被分子吸收，它的频率和能量可以,使分子转动,这当然的，会产生热量,这就是你们微波炉的工作原理。

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Congestion is inevitable because Wi-Fi uses the same unregulated 2.6 gigahertz frequency as microwave ovens, cordless phones and the upcoming Bluetooth networking standard, which lets phones, PCs and vending machines talk to one another.

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Yet despite high costs of entry and regulatory limits on spectrum availability and infrastructure investment, new technologies (LTE, satellite, microwave, and higher-frequency communications) and new competitors continue to enter the market all the time.

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This frequency is crowded since it is used by everything from other tablets to microwave ovens, baby monitors, Bluetooth devices, not to mention the neighbors' Wi-Fi networks.

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