「人生70古來稀」 上半句鮮為人知

Fei Teng Wireless Technology (FT-RF) is a Taiwan antenna manufacturer. Since our inception in 2001, we have been consistently inventing and improving in order to better understand and respond to the demands of our clients.

By delivering trustworthy design technology and stringent quality control, we have years of award-winning experience in numerous industries and applications such as military, commercial, and citizen frequency bands.

FT-RF specializes in producing:

Military Antennas (Jammer Antenna, Military Horn antenna, Military vehicle antenna, Antenna Telescope Mast, Marine, Panel, Log Periodic antenna, Gooseneck, Whip, GPS, Connector, Adapter...) Please visit the website: https://military.ft-rf.com.tw/
Outdoor Antenna and Indoor Antenna: Including Lora Antenna, ISM, LPWA antenna (868MHz antenna aka EU868, 915MHz antenna aka US915, 923MHz antenna aka AS923 and others.), 4G LTE antenna, 5G antenna, Wifi Antenna, Multi-Frequency Antenna, UHF antenna..., RF components, Cables and Connectors. We offer a variety of high-performance antennas for Global LoRaWAN applications, including 868 MHz, 915 MHz, 868 MHz, and 923 MHz... Our product line comprises both durable outdoor antennas and indoor high-performance dipole antennas that are suitable for a variety of LoRa applications, including Helium Network support. Please visit the website here: https://ft-rf.com.tw/.
Horn Antenna: RF Microwave Antennas, EMC test equipment (Double Ridged Horn Antenna, Open boundary double ridged horn antenna, Quad Ridged Horn Antenna, Standard Gain Horn antenna, Waveguide to coax Adapter, precision Sleeve Dipole Antenna, Log Periodic Antenna, Antenna Tripod, RF connectors... Please visit the website: https://horn.ft-rf.com.tw/
We provide measurement and calibration Tests, ODM, OEM services for certain products.

We have hundreds of customers from over 60 countries, and to meet their demands, we developed a plant in Vietnam (with a total infrastructure area of 10000 square meters, which includes three major buildings dedicated to operations and production) in addition to the main manufacturing facility in Taiwan. Now, we are focusing on automatic production lines and investing in automation equipment. In the future, we pledge to deliver the highest-quality product in the shortest possible period.

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

大陸中心／綜合報導

「人生70古來稀」 是一句大家耳熟能詳的老話，大家會以為這是指古代能活到70歲以上的人比較稀有。不過，如果沒讀過這句話的上半句，根本不算讀懂了這句話，但它的上半句，卻少有人知，只有讀懂了上半句，才算理解透徹活明白了。

▲「人生70古來稀」出自詩聖杜甫的《曲江二首》之一。（圖／翻攝百度百科)

其實，「人生70古來稀」既不是俗語也不是諺語，而是一句古詩，出自詩聖杜甫的《曲江二首》之一。曲江，又叫曲江池，是當時長安城的一處風景名勝，這首詩寫於西元758年的一個春日，這一年，杜甫剛剛經歷了一場牢獄之災被釋放出來，但重獲自由的杜甫沒能得到提拔重用，而是被貶為一個底層的閒職小吏。

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

在離開長安之前，杜甫獨自一人來到曲江邊，滿懷傷感的杜甫，寫下了這首曲江賦：「朝回日日典春衣，每日江頭盡醉歸。酒債尋常行處有，人生70古來稀。穿花蛺蝶深深見，點水蜻蜓款款飛。傳語風光共流轉，暫時相賞莫相違。」

這首詩，寫的是杜甫上朝歸來，當時他的經濟情況是非常的拮据，已經到了連衣服都拿去典當的地步，在這種窮愁失意的人生處境當中，他把典當換來的銀兩，都拿去買醉，一醉解千愁。

但即便如此，杜甫還是到處欠下了不少的酒錢，可見當時的杜甫是多麼的窘迫，但是，他覺得不管是官場失意還是捉襟見肘的困境，都不是什麼大問題，因為能夠活到70歲的人是非常少見的，既然人生苦短，那麼今朝有酒今朝醉及時行樂才是快意人生。

如今，我們幾乎人人都知道「人生70古來稀」這句話，但上半句「酒債尋常行處有」，卻少有人知。人生70古來稀，不僅僅是對人壽命的一個感歎，其實還有另外一層深意。

古代的官員，基本上沒有嚴格的法定退休年齡，一般在70歲的時候，就已經走到了事業的巔峰，幾乎沒有更上一層樓的可能，正好是功成身退衣錦還鄉的時候，當時的杜甫，才剛剛46歲，正常的來說，應該還有無限的可能。

不過，此時的杜甫，已經有了一種頹廢和失望的無奈之感，人生過半，要靠著典當衣服來換酒錢，而且還到處欠債，這對於很有情懷和理想的杜甫來說，無疑會有一種深深的挫敗感。最後杜甫只活了58歲，對照他這首詩，也讓人感嘆不已。