▲台灣「桌球教父」莊智淵（右）與陳建安在WTT大滿貫男雙8強賽，以3：0橫掃韓國組合，晉級4強。（圖／中央社）

台灣「桌球教父」莊智淵與陳建安15日在WTT大滿貫賽男雙8強賽，以3：0橫掃韓國對手。陳建安賽後表示，這次在短球方面多做些調整，控制相對較好，讓對手較無法有力出手。

總獎金200萬美元的WTT（世界桌球職業大聯盟）新加坡大滿貫賽自7日至20日在新加坡華僑銀行室內體育館（OCBC Arena）舉行。東京奧運混雙銅牌組合林昀儒與鄭怡靜混雙4強賽今天稍早以3：1力挫法國組合勒貝松（Emmanuel Lebesson）與袁嘉楠，闖進明天冠軍賽。

HORN ANTENNA CALIBRATION

1.) The dual-polarization (HQ-Series or HR-Series) antenna has an electronic switch that may simultaneously test horizontal and vertical or +-45deg polarization, as well as a couple that can test circular polarization.
2.) The dual-polarized antenna (HQ-Series or HR-Series) is mounted on the chamber's bracket or wall (this is the way to test the antenna)
3.) If the dual-polarized antenna is being used for something else and calibration is needed, we can certainly assist.
4.)Single-polarized antennas (HA-Series, HB-Series, and other antennas) are commonly used to replace the antenna method's calibration antenna. When HA calibration is utilized, the calibration site is lost (patch loss uses a network analyzer) Enter the antenna's gain (minus the gain of the antenna, equal to the address of the object under test, return to zero)

5.) There is only one technique to compute antenna gain. The path loss patch loss subtracts the antenna's gain and substitutes the antenna under test to obtain the antenna's gain.
6.) Rotate the object under test after calculating the antenna route loss and gain calibration numbers (requires a rotating table, 2D test)
7.) If you want to read the horizontal and vertical antenna patterns at the same time with a dual-polarized antenna, an RF electronic switch, and a 3D rotating table, you can get the antenna pattern of the antenna (3D testing requires the use of HA-Series calibration twice, Horizontal and vertical or +-45deg),

8.) Antennas can be tested in a variety of methods (if you have any questions, you can provide simple photos or hand-drawn pictures, and we can assist you in the test plan)

9.) To ensure that the test value of the antenna is in compliance with international standards, all Horn products developed by FT-RF have passed internal calibration and testing in collaboration with external national research institutions, as well as third-party confirmation tests.

10.)In most ISO systems, we will demand external calibration of our test items every three years and internal self-calibration every other year. You can use the network with a set of HA-Series antennas. Calculate the path's loss using an analyzer (but usually at least three antennas can be used for internal correction, we can do internal correction by replacing the three antennas in turn)

11.)The antenna can be shipped back to Taiwan for calibration once every three years (you must know the shipping cost and the economic impact), or you can purchase a fresh set of calibrated antennas (we will calibrate the antenna internally).

11.)The antenna can be sent back to Taiwan for calibration once every three years (you must know the cost of shipping and the economic impact), or you can purchase a new set of calibrated antennas (we will calibrate the antenna internally or It is externally corrected and then sent to the customer)

12.) Antenna calibration is mostly done by an external calibration unit that must bear the ISO17025 and TAF logos.

13.)For the difference comparison test, you can use internally calibrated antennas, self-calibration, and ISO17025 antennas; this approach is frequently used in the ISO9001 series.

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

莊智淵與陳建安晚間在男雙8強賽登場，同樣傳來捷報，以3：0擊敗韓國組合林鍾勳與張禹珍。

「莊陳配」首局以11：7先下一城，次局以11：7拿下，取得聽牌優勢。到了決勝局，莊、陳也未遭遇對手太多抵抗，以11：3迎接勝利，搶下4強門票。

對於以3：0獲勝的關鍵，陳建安賽後接受中央社記者採訪時表示，關鍵是自己控制相對比較好，讓對手比較無法有力出手。

莊智淵與陳建安去年底在世界桌球錦標賽以0：3輸給林鍾勳與張禹珍，如何因應這場比賽？陳建安說，在短球方面多做一些調整。

莊智淵表示，上次被對手3：0獲勝，不好打，「這次我們比較注意」，控制比較嚴密，也有把握住機會。

莊智淵與陳建安16日下午4強賽將對上日本組合戶上隼輔、宇田幸矢，爭奪冠軍賽門票。