1.4萬愛瘋可買？1張圖秒懂哪升級

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

記者谷庭／台北報導

▲第三代iPhone SE 有感升級。 （圖／翻攝自蘋果發表會） 

蘋果今日（9）舉辦2022 年第一場發表會，也睽違兩年未更新的 iPhone SE 迎接第三代，售價13900元起，也成為最便宜的5G iPhone。究竟值不值得購買，《三立新聞網》也整理第二代iPhone SE與第三代差別，提供給讀者參考。

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

首先第三代 iPhone SE 外觀設計沒有改變，與第二代iPhone SE 一模一樣，搭載 4.7 吋的螢幕，支援 Touch ID 指紋辨識，背面則是一顆 1200 萬畫的單鏡頭，顏色有午夜、紅、星光三種選擇。

不過雖然外觀一樣，但細節有不同，第三代iPhone SE 前後玻璃改為「超瓷晶盾」，比前一代更強的保護力，以及 IP67 防水防塵。

▲ 第二代與第三代規格比較。（圖／記者谷庭製）

另外升級的還有搭載iPhone 13 同級的 A15 晶片，讓AI運算更好，同時也支援更多拍照功能包含智慧型 HDR 4、攝影風格和深度融合，可以讓人物膚質更自然細膩。也讓電池續航力增加2小時以上，且支援20W以上快速充電。

支援 5G 網路，全新第三代 iPhone SE 價格落在 429 美元，比前一代貴了 30 美元，台灣售價 64GB 為NT $13,900、128GB 為NT$15,500、256GB為 NT$19,000，將於 3 月 18 日上市。