快訊／95歲英國女王新冠肺炎確診

In broadcast engineering, a panel antenna is a directional antenna that is widely used to obtain a wireless Internet connection.
Directional antennas receive and broadcast a signal in only one direction, resulting in better signal quality.
Panel antennas, for example, are used in underdeveloped countries to improve the range and functionality of wireless Internet networks.

A panel antenna is shaped like a panel and is typically fixed on a mounting bracket on the exterior or inside of a building. It can also be mounted on a swivel mount, allowing the user to adjust the antenna for optimal signal reception. This type of antenna is usually one-directional, with less mobility side-to-side and up-and-down than an omnidirectional antenna, which can swivel and entirely change its location. Two U-bolt brackets and waterproof were supplied in one piece of packing

國際中心／周羿彣報導

白金漢宮證實，現年95歲的女王伊莉莎白二世（Queen Elizabeth）新冠肺炎陽性確診，目前有輕微的感冒症狀，預計本周會將會改為進行一些「負擔較輕」的工作。

700MHz to 8GHz Double Ridged Broadband Waveguide Horn Antenna version 2
Model No: HA-07M08GA2-NF

Frequency: 700MHz to 8GHz
Gain: 6 dbi to 17 dBi
LxWxH: 661x430x445mm
N.W.: 8.1kg
-3dB Beamwidth: Horz.26 Deg Vert.34 Deg

Double Ridged Horn Antenna
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The horn antenna is a broadband passive device, shaped like a pyramid horn, referred to as a TEM antenna, which guides the beam of radio waves at a precise frequency. FT-RF Double Ridged Horn antennas have frequency capabilities ranging from 400MHz to 40GHz depending on type and style. These series are characterized by a huge frequency range and extremely high input powers. With increasing frequency, the gain rises to a maximum of 18 dBi. At higher frequencies, the increased gain compensates for the increasing cable losses.

The advantages of Horn antenna:

- Wide bandwidth: Because the horn antenna has no resonant parts, it can function over a wide range of frequencies.

- Easy waveguide interface: These antennas are very easy to interface to waveguide due to their shape, but they can also be designed with a transition so that a regular coaxial feeder can be used.

- Easy to make, simple design.

The horn is suitable for both transmitting and receiving purposes, especially suitable for EMC and immunity test measurements.

Recommended Accessories

- Antenna Tripod: easy and fast-changing polarisation. 100% stable handling

- SMA Cable: High-quality special SMA cable

綜合外媒報導，查爾斯王子（Prince Charles）先前才被報出二次罹患新冠肺炎的消息，且在確診前兩天才與女王直接接觸。白金漢宮也補充女王的近況，她將持續接受治療，並遵循所有醫師指示。

▲95歲的英國女王確診。（圖／翻攝自The Royal Family臉書）

看更多 新冠肺炎（COVID-19）疫情 最新報導： https://bit.ly/37gsay1

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防範新冠肺炎，外出時應配戴口罩、勤洗手，出入公共場合落實實聯制，有疑似症狀應儘快就醫，經評估後採檢。

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