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 antenna main body with the bracket using CNC precision manufacturing, and adopt a more weather resistant material aluminum material and the surface through the 6061 and 7071 Aluminum special handling to prevent oxidation.
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 application of horn antenna
- Antenna feeds for parabolic reflectors
- Radar systems with a short-range
The horn is suitable for both transmitting and receiving purposes. the product is 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
記者李鴻典／台北報導
▲過年期間，桌上擺滿的懷舊零食，就是最讓人熟悉的味道。（圖／資料照）
有關於兒時的回憶，可能是一張照片、一件衣服，或是從小吃到大的味道。而在過年期間，桌上擺滿的懷舊零食，就是最讓人熟悉不過的味道了，現在就一起來看看，網友過年期間必吃的懷舊零食有哪些。
《Social Lab社群實驗室》透過《OpView社群口碑資料庫》追蹤近一年「過年懷舊零食」話題的網路聲量表現，了解網友熱議的八大過年懷舊零食網路聲量排行。
天必備堅果零嘴、糕點酥餅令人欲罷不能！每每農曆新年將至，就有網友提問「過年期間必買古早味零食？」，引發許多回覆，其中關於討論度最高的「牛軋糖」，網友就說「牛奶味在嘴巴化開，超香的」、「扎實但不黏牙，大推」等，更直言是年節必吃，可見其高人氣。另外像是「瓜子」、「開心果」等堅果類，非常適合泡一壺茶大家坐下來聊天，不僅老少閒宜，而且會「一直剝根本停不下來」，引起許多共鳴。另外也引起網友兒時回憶稱「小時候剝太慢都被長輩吃光了」，令網友哭笑不得。
此外，「娃娃酥」、「麻荖」、「花生酥」等糕點酥餅類零食，也是許多人的共同記憶之一，網友就說「（娃娃酥）外層的糖衣超好吃」、「超愛麻荖，香甜不膩口，我可以吃半包」等，不過也有網友提醒，這幾樣零食熱量較高，要注意別吃太多，以免年後胖一圈。
最後，當提到「魷魚絲」，網友也是紛紛表示一口接一口停不下來，跟瓜子同樣是「聊八卦必備的好夥伴」。而關於「冬瓜糖」的討論則是集中在甜度，如愛吃甜的螞蟻人表示「甜甜的很好吃啊」，但也有網友覺得過甜「吃一根好像吃了一包糖」等。
▲《Social Lab社群實驗室》公布網友熱議的八大過年懷舊零食網路聲量排行。（圖／社群實驗室提供）
