什麼是mmWave？ What is mmWave？
mmWave（毫米波）是電磁波的一種，介於微波與光波之間。波長為1～10毫米、傳輸速度每秒達30萬公里、頻率為30～300GHz。相較4G技術，5G有高傳輸速率、低延遲、高容量的優勢，不但可以支援更多台裝置連線，也能整合更多產業運用。
mmWave (millimeter wave) is a type of electromagnetic wave, between microwaves and light waves. It has a wavelength of 1-10 millimeters, a transmission speed up to 300,000 kilometers per second, and a frequency range of 30-300 GHz. Compared with 4G technology, 5G offer higher transmission rates, lower latency, and higher capacity, which not only support more device connection but also integration across more industries.
．縮小天線尺寸Miniaturized Antenna Size：
毫米波的頻率高、波長短，能大幅縮小天線的尺寸，讓設備體積更輕巧。
Millimeter waves have high frequency,short wavelength and can decreased significantly the size of antenna, making devices more lightweight
．降低訊號干擾Reduced Signal Interference：
毫米波在空中傳播時訊號容易減弱，傳輸距離較短。但這也減少與其他訊號的干擾情形，有助於保持通訊品質穩定。毫米波雖傳得不遠，卻能提供更乾淨、無干擾的通訊環境。
Millimeter waves tend to weaken quickly as they spread through the air, resulting in shorter transmission distances. However, this also reduces interference with other signals, helping to maintain stable communication quality. Although millimeter waves spread shortly, they can provide a cleaner, uninterrupted communication environment.
．高速率和低延遲High Speed and Low Delay：
毫米波是5G網路的關鍵技術，提供比4G更高的下載和上傳速率，以及更低的通信延遲。這對於實時數據傳輸和快速反應非常重要。例如在自動駕駛汽車中，需要實時傳輸大量數據進行環境感知和動作判斷。
Millimeter waves are a key technology for 5G network, offering higher download and upload speeds compared to 4G, as well as lower communication delay. This is crucial for real-time data transmission and rapid response. For instance, in autonomous cars, real-time transmission of large amounts of data is required for environmental perception and decision-making.
高連接密度、大容量毫米波的波長短，需要建置更密集的基地台。因此，5G網路具有更高的連接密度，可以支援更多設備同時連接到單一基地台，並進行高速數據傳輸。對於大規模的物聯網設備而言、感測器網路變的相當重要，且能夠應對需要處理大量圖形和視頻數據的虛擬實境／擴增實境應用。
High Connection Density and Large Capacity: The short wavelength of millimeter waves necessitates the deployment of more densely packed base stations. Consequently, 5G networks have a higher connection density, capable of supporting more devices connected to a single base station and enabling high-speed data transmission. This is particularly important for large-scale IoT devices and sensor networks, and it can handle applications that require processing large amounts of graphic and video data, such as virtual reality (VR) and augmented reality (AR).
