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到底什么是智能超表面(RIS)?
众所周知,无线频谱资源正在变得越来越稀缺。为了满足无线传输速率的需求,通信系统的工作频段不断向更高频段迈进。但是,高频电波具有波动性弱、绕射能力差的特点。在遇到障碍物时,容易受到遮挡,导致信号质量下降。为了实现连续覆盖并保证信号质量,运营商需要在城市 ...
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今日热点
Agrees to limited ceasefire
On judicial impeachment call
Reinstating fired workers
Parents on missing daughter
Removing privacy setting
Worker stole $1.6 million
Ordered to pay $54K+
Trump revokes protection
Earthquake shakes Bay Area
WH says US won't return
Producer files for bankruptcy
Texas midwife arrested
Honduras plane crash
Peru declares emergency
Delta plane wing hits runway
Ex-Texas pastor surrenders
Visits White House
Stuck astronauts depart ISS
'Get Together' singer dies
Lunar lander goes silent
Judge demands answers
DOGE gains access to USIP?
Acquires AI video startup
Lebanon-Syria ceasefire
Fire danger continues for OK
Tapped as top bank cop
Halts care for trans veterans
DC drops Jan. 6 lawsuit
JFK files to be released
US retail sales rebound
US housing starts rebound
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