T- MATCH ANTENNA

T MATCH ANTENNA

Gambar (1) T MATCH ANTENNA

Pada Dasarnya Antenna T Match merupakan salah satu jenis Antenna Yagi. Dinamakan T Match karena penyesuai impedansinya menggunakan sistem yang menyerupai huruf  T yang seimbang, dengan nilai Impedansi sekitar 200 s/d 300 Ohm kurang lebihnya.

Karena seimbang dan kabel feedline (Penyalur coaxial dari Tx/Pemancar bersifat Unbalanced/ tak seimbang (kabel coaxial kan terdiri dari Inner dan Ground), maka agar Antenna menjadi unbalanced sesuai dengan kabel transmisinya, maka diperlukanlah suatu transformer yang bisa mengubah dari seimbang menjadi tak seimbang yang disebut Balun 1:4. Fungsinya mentransformasikan/mengubah nilai Impedansi Antenna yang 200 Ohm menjadi 50 Ohm (200 : 4 = 50 Ohm), sesuai dengan kabel transmisi yang kita gunakan yaitu coaxial 50 Ohm

Gambar (2) 2 Stack Yagi Antenna>> Powered by Mr. Topenx

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7 responses to this post.

  1. Posted by mazzofa on June 10, 2010 at 5:39 am

    For 2nd Picture is One of My Homebrew. It’s designed by My self and the frequency cut off is 80.50 MHz. I’m very satisfied for the Gain produced. it’s consist eight elements with the boom length is more less 570 cm or 5.7 meters. I use 50 Ohm, with balun 1/2 wavelength.

    Reply

  2. Posted by mazzofa on June 10, 2010 at 5:55 am

    It’s The Great T Match Antenna with 2x 8 elements, on my tower 16 meters high. With the TX power Injection is 10 Watts, it can be received at Klaten, Yogyakarta Middle Java very clear. And as you know My station at Nganjuk East java.

    I use phasing line 75 ohm, RG11, belden 9292 type. with the odd multiple of 1/4 wavelength is 7/4 wave length, for each side.

    Reply

  3. Posted by mazzofa on June 10, 2010 at 5:55 am

    It’s The Great T Match Antenna with 2x 8 elements, on my tower 16 meters high. With the TX power Injection is 10 Watts, it can be received at Klaten, Yogyakarta Middle of Java very clear. And as you know My station in Nganjuk East java.

    I use phasing line 75 ohm, RG11, belden 9292 type. with the odd multiple of 1/4 wavelength is 7/4 wave length, for each side.

    Reply

  4. Tapi sayang sekali, element director pertama, antenna yang sebelah kanan terlepas dan sekarang sudah jatuh, akibat kencengnya angin di kota bayu (Nganjuk). Hingga sekarang masih belum bisa repair juga krn banyak kerjaan.

    Reply

  5. Posted by Doni Bojonegoro on August 25, 2012 at 2:30 pm

    mas topeng, kasih skema antena-nya dong di frek. 80.00Mhz

    Reply

  6. Posted by Ruslan on April 26, 2014 at 8:27 am

    Boleh dong saya minta detail gambarnya untuk yg di bandung 2M

    Reply

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