Yagi adalah nama orang Jepang yang
merancang jenis antena. Hal ini sangat mudah bagi amatir untuk membangun
menggunakan bahan seperti gantungan pakaian atau kawat tembaga yang digunakan
untuk kabel rumah.
Jika Anda dapat menjalankan kawat dari kelas Anda di luar ke atap sekolah Anda atau lokasi lain yang cocok untuk mengatur antena Anda, tiga elemen Yagi antena dianjurkan. Hal ini secara efisien akan mengumpulkan energi yang dipancarkan dari sebuah stasiun radio FM yang jauh gelombang telah tercermin dari jejak meteor. Kami telah menguji antena ini dan sedang digunakan dengan sukses di beberapa sekolah pertama kami uji.
Jika Anda ingin mempelajari lebih
lanjut tentang antena desain, lanjutkan membaca, jika tidak, lanjutkan ke topik
berikutnya yang Anda minati.
Desain Antena Yagi :
Antena Yagi terdiri dari 2 bagian:
- elemen antena
- boom antena
Ada tiga jenis elemen:
- Reflector (REFL)
- Driven Elemen (DE)
- Direksi/Director (DIR)
Reflector berada di belakang antena
terjauh dari stasiun pemancar. Dengan kata lain boom antena adalah menunjuk ke
arah stasiun radio di atas cakrawala dengan reflektor terjauh dari stasiun.
Elemen Driven adalah tempat sinyal
disadap dengan peralatan yang menerima dan memiliki kabel terpasang yang
mengambil sinyal yang diterima ke penerima.
6 Element Yagi Antenna
Lihat tabel di link ini untuk melihat panjang elemen antena dan
jarak antara mereka untuk frekuensi yang diberikan. Panjang dan jarak diberikan untuk band radio FM. Atau Anda dapat menggunakan rumus di bawah ini untuk menghitung dimensi untuk antena Anda
|
|
LENGTH
|
SPACING
|
|||||||||
|
FREQ.
|
DIR. 4
|
DIR. 3
|
DIR. 2
|
DIR. 1
|
DE
|
REFL
|
D4 - D3
|
D3 - D2
|
D2 - D1
|
D1 - DE
|
DE
- REFL
|
|
MHz
|
cm
|
cm
|
cm
|
cm
|
cm
|
cm
|
cm
|
cm
|
cm
|
cm
|
cm
|
|
88.1
|
144.0
|
146.4
|
148.1
|
149.8
|
161.1
|
168.6
|
85.1
|
85.1
|
85.1
|
42.6
|
42.6
|
|
88.3
|
143.7
|
146.1
|
147.8
|
149.5
|
160.7
|
168.2
|
84.9
|
84.9
|
84.9
|
42.5
|
42.5
|
|
88.5
|
143.4
|
145.8
|
147.5
|
149.2
|
160.3
|
167.8
|
84.7
|
84.7
|
84.7
|
42.4
|
42.4
|
|
88.7
|
143.1
|
145.4
|
147.1
|
148.8
|
160.0
|
167.4
|
84.6
|
84.6
|
84.6
|
42.3
|
42.3
|
|
88.9
|
142.7
|
145.1
|
146.8
|
148.5
|
159.6
|
167.0
|
84.4
|
84.4
|
84.4
|
42.2
|
42.2
|
|
89.1
|
142.4
|
144.8
|
146.5
|
148.1
|
159.3
|
166.7
|
84.2
|
84.2
|
84.2
|
42.1
|
42.1
|
|
89.3
|
142.1
|
144.5
|
146.1
|
147.8
|
158.9
|
166.3
|
84.0
|
84.0
|
84.0
|
42.0
|
42.0
|
|
89.5
|
141.8
|
144.1
|
145.8
|
147.5
|
158.5
|
165.9
|
83.8
|
83.8
|
83.8
|
41.9
|
41.9
|
|
89.7
|
141.5
|
143.8
|
145.5
|
147.2
|
158.2
|
165.6
|
83.6
|
83.6
|
83.6
|
41.8
|
41.8
|
|
89.9
|
141.2
|
143.5
|
145.2
|
146.8
|
157.8
|
165.2
|
83.4
|
83.4
|
83.4
|
41.7
|
41.7
|
|
90.1
|
140.8
|
143.2
|
144.8
|
146.5
|
157.5
|
164.8
|
83.2
|
83.2
|
83.2
|
41.6
|
41.6
|
|
90.3
|
140.5
|
142.9
|
144.5
|
146.2
|
157.1
|
164.5
|
83.1
|
83.1
|
83.1
|
41.5
|
41.5
|
|
90.5
|
140.2
|
142.5
|
144.2
|
145.9
|
156.8
|
164.1
|
82.9
|
82.9
|
82.9
|
41.4
|
41.4
|
|
90.7
|
139.9
|
142.2
|
143.9
|
145.5
|
156.4
|
163.7
|
82.7
|
82.7
|
82.7
|
41.3
|
41.3
|
|
90.9
|
139.6
|
141.9
|
143.6
|
145.2
|
156.1
|
163.4
|
82.5
|
82.5
|
82.5
|
41.3
|
41.3
|
|
91.1
|
139.3
|
141.6
|
143.2
|
144.9
|
155.8
|
163.0
|
82.3
|
82.3
|
82.3
|
41.2
|
41.2
|
|
91.3
|
139.0
|
141.3
|
142.9
|
144.6
|
155.4
|
162.7
|
82.1
|
82.1
|
82.1
|
41.1
|
41.1
|
|
91.5
|
138.7
|
141.0
|
142.6
|
144.3
|
155.1
|
162.3
|
82.0
|
82.0
|
82.0
|
41.0
|
41.0
|
|
91.7
|
138.4
|
140.7
|
142.3
|
143.9
|
154.7
|
161.9
|
81.8
|
81.8
|
81.8
|
40.9
|
40.9
|
|
91.9
|
138.1
|
140.4
|
142.0
|
143.6
|
154.4
|
161.6
|
81.6
|
81.6
|
81.6
|
40.8
|
40.8
|
|
92.1
|
137.8
|
140.1
|
141.7
|
143.3
|
154.1
|
161.2
|
81.4
|
81.4
|
81.4
|
40.7
|
40.7
|
|
92.3
|
137.5
|
139.8
|
141.4
|
143.0
|
153.7
|
160.9
|
81.3
|
81.3
|
81.3
|
40.6
|
40.6
|
|
92.5
|
137.2
|
139.5
|
141.1
|
142.7
|
153.4
|
160.5
|
81.1
|
81.1
|
81.1
|
40.5
|
40.5
|
|
92.7
|
136.9
|
139.2
|
140.8
|
142.4
|
153.1
|
160.2
|
80.9
|
80.9
|
80.9
|
40.5
|
40.5
|
|
92.9
|
136.6
|
138.9
|
140.5
|
142.1
|
152.7
|
159.8
|
80.7
|
80.7
|
80.7
|
40.4
|
40.4
|
|
93.1
|
136.3
|
138.6
|
140.2
|
141.8
|
152.4
|
159.5
|
80.6
|
80.6
|
80.6
|
40.3
|
40.3
|
|
93.3
|
136.0
|
138.3
|
139.9
|
141.5
|
152.1
|
159.2
|
80.4
|
80.4
|
80.4
|
40.2
|
40.2
|
|
93.5
|
135.7
|
138.0
|
139.6
|
141.2
|
151.8
|
158.8
|
80.2
|
80.2
|
80.2
|
40.1
|
40.1
|
|
93.7
|
135.4
|
137.7
|
139.3
|
140.9
|
151.4
|
158.5
|
80.0
|
80.0
|
80.0
|
40.0
|
40.0
|
|
93.9
|
135.1
|
137.4
|
139.0
|
140.6
|
151.1
|
158.1
|
79.9
|
79.9
|
79.9
|
39.9
|
39.9
|
|
94.1
|
134.9
|
137.1
|
138.7
|
140.3
|
150.8
|
157.8
|
79.7
|
79.7
|
79.7
|
39.9
|
39.9
|
|
94.3
|
134.6
|
136.8
|
138.4
|
140.0
|
150.5
|
157.5
|
79.5
|
79.5
|
79.5
|
39.8
|
39.8
|
|
94.5
|
134.3
|
136.5
|
138.1
|
139.7
|
150.2
|
157.1
|
79.4
|
79.4
|
79.4
|
39.7
|
39.7
|
|
94.7
|
134.0
|
136.2
|
137.8
|
139.4
|
149.8
|
156.8
|
79.2
|
79.2
|
79.2
|
39.6
|
39.6
|
|
94.9
|
133.7
|
135.9
|
137.5
|
139.1
|
149.5
|
156.5
|
79.0
|
79.0
|
79.0
|
39.5
|
39.5
|
|
95.1
|
133.4
|
135.6
|
137.2
|
138.8
|
149.2
|
156.2
|
78.9
|
78.9
|
78.9
|
39.4
|
39.4
|
|
95.3
|
133.2
|
135.4
|
136.9
|
138.5
|
148.9
|
155.8
|
78.7
|
78.7
|
78.7
|
39.3
|
39.3
|
|
95.5
|
132.9
|
135.1
|
136.6
|
138.2
|
148.6
|
155.5
|
78.5
|
78.5
|
78.5
|
39.3
|
39.3
|
|
95.7
|
132.6
|
134.8
|
136.4
|
137.9
|
148.3
|
155.2
|
78.4
|
78.4
|
78.4
|
39.2
|
39.2
|
|
95.9
|
132.3
|
134.5
|
136.1
|
137.6
|
148.0
|
154.8
|
78.2
|
78.2
|
78.2
|
39.1
|
39.1
|
|
96.1
|
132.0
|
134.2
|
135.8
|
137.4
|
147.7
|
154.5
|
78.0
|
78.0
|
78.0
|
39.0
|
39.0
|
|
96.3
|
131.8
|
134.0
|
135.5
|
137.1
|
147.4
|
154.2
|
77.9
|
77.9
|
77.9
|
38.9
|
38.9
|
|
96.5
|
131.5
|
133.7
|
135.2
|
136.8
|
147.0
|
153.9
|
77.7
|
77.7
|
77.7
|
38.9
|
38.9
|
|
96.7
|
131.2
|
133.4
|
135.0
|
136.5
|
146.7
|
153.6
|
77.6
|
77.6
|
77.6
|
38.8
|
38.8
|
|
96.9
|
131.0
|
133.1
|
134.7
|
136.2
|
146.4
|
153.3
|
77.4
|
77.4
|
77.4
|
38.7
|
38.7
|
|
97.1
|
130.7
|
132.9
|
134.4
|
135.9
|
146.1
|
152.9
|
77.2
|
77.2
|
77.2
|
38.6
|
38.6
|
|
97.3
|
130.4
|
132.6
|
134.1
|
135.7
|
145.8
|
152.6
|
77.1
|
77.1
|
77.1
|
38.5
|
38.5
|
|
97.5
|
130.2
|
132.3
|
133.8
|
135.4
|
145.5
|
152.3
|
76.9
|
76.9
|
76.9
|
38.5
|
38.5
|
|
97.7
|
129.9
|
132.0
|
133.6
|
135.1
|
145.2
|
152.0
|
76.8
|
76.8
|
76.8
|
38.4
|
38.4
|
|
97.9
|
129.6
|
131.8
|
133.3
|
134.8
|
144.9
|
151.7
|
76.6
|
76.6
|
76.6
|
38.3
|
38.3
|
|
98.1
|
129.4
|
131.5
|
133.0
|
134.6
|
144.6
|
151.4
|
76.5
|
76.5
|
76.5
|
38.2
|
38.2
|
|
98.3
|
129.1
|
131.2
|
132.8
|
134.3
|
144.4
|
151.1
|
76.3
|
76.3
|
76.3
|
38.1
|
38.1
|
|
98.5
|
128.8
|
131.0
|
132.5
|
134.0
|
144.1
|
150.8
|
76.1
|
76.1
|
76.1
|
38.1
|
38.1
|
|
98.7
|
128.6
|
130.7
|
132.2
|
133.7
|
143.8
|
150.5
|
76.0
|
76.0
|
76.0
|
38.0
|
38.0
|
|
98.9
|
128.3
|
130.4
|
132.0
|
133.5
|
143.5
|
150.2
|
75.8
|
75.8
|
75.8
|
37.9
|
37.9
|
|
99.1
|
128.1
|
130.2
|
131.7
|
133.2
|
143.2
|
149.8
|
75.7
|
75.7
|
75.7
|
37.8
|
37.8
|
|
99.3
|
127.8
|
129.9
|
131.4
|
132.9
|
142.9
|
149.5
|
75.5
|
75.5
|
75.5
|
37.8
|
37.8
|
|
99.5
|
127.5
|
129.6
|
131.2
|
132.7
|
142.6
|
149.2
|
75.4
|
75.4
|
75.4
|
37.7
|
37.7
|
|
99.7
|
127.3
|
129.4
|
130.9
|
132.4
|
142.3
|
148.9
|
75.2
|
75.2
|
75.2
|
37.6
|
37.6
|
|
99.9
|
127.0
|
129.1
|
130.6
|
132.1
|
142.0
|
148.6
|
75.1
|
75.1
|
75.1
|
37.5
|
37.5
|
|
100.1
|
126.8
|
128.9
|
130.4
|
131.9
|
141.8
|
148.4
|
74.9
|
74.9
|
74.9
|
37.5
|
37.5
|
|
100.3
|
126.5
|
128.6
|
130.1
|
131.6
|
141.5
|
148.1
|
74.8
|
74.8
|
74.8
|
37.4
|
37.4
|
|
100.5
|
126.3
|
128.4
|
129.9
|
131.3
|
141.2
|
147.8
|
74.6
|
74.6
|
74.6
|
37.3
|
37.3
|
|
100.7
|
126.0
|
128.1
|
129.6
|
131.1
|
140.9
|
147.5
|
74.5
|
74.5
|
74.5
|
37.2
|
37.2
|
|
100.9
|
125.8
|
127.8
|
129.3
|
130.8
|
140.6
|
147.2
|
74.3
|
74.3
|
74.3
|
37.2
|
37.2
|
|
101.1
|
125.5
|
127.6
|
129.1
|
130.6
|
140.4
|
146.9
|
74.2
|
74.2
|
74.2
|
37.1
|
37.1
|
|
101.3
|
125.3
|
127.3
|
128.8
|
130.3
|
140.1
|
146.6
|
74.0
|
74.0
|
74.0
|
37.0
|
37.0
|
|
101.5
|
125.0
|
127.1
|
128.6
|
130.0
|
139.8
|
146.3
|
73.9
|
73.9
|
73.9
|
36.9
|
36.9
|
|
101.7
|
124.8
|
126.8
|
128.3
|
129.8
|
139.5
|
146.0
|
73.7
|
73.7
|
73.7
|
36.9
|
36.9
|
|
101.9
|
124.5
|
126.6
|
128.1
|
129.5
|
139.3
|
145.7
|
73.6
|
73.6
|
73.6
|
36.8
|
36.8
|
|
102.1
|
124.3
|
126.3
|
127.8
|
129.3
|
139.0
|
145.4
|
73.5
|
73.5
|
73.5
|
36.7
|
36.7
|
|
102.3
|
124.0
|
126.1
|
127.6
|
129.0
|
138.7
|
145.2
|
73.3
|
73.3
|
73.3
|
36.7
|
36.7
|
|
102.5
|
123.8
|
125.9
|
127.3
|
128.8
|
138.4
|
144.9
|
73.2
|
73.2
|
73.2
|
36.6
|
36.6
|
|
102.7
|
123.6
|
125.6
|
127.1
|
128.5
|
138.2
|
144.6
|
73.0
|
73.0
|
73.0
|
36.5
|
36.5
|
|
102.9
|
123.3
|
125.4
|
126.8
|
128.3
|
137.9
|
144.3
|
72.9
|
72.9
|
72.9
|
36.4
|
36.4
|
|
103.1
|
123.1
|
125.1
|
126.6
|
128.0
|
137.6
|
144.0
|
72.7
|
72.7
|
72.7
|
36.4
|
36.4
|
|
103.3
|
122.8
|
124.9
|
126.3
|
127.8
|
137.4
|
143.8
|
72.6
|
72.6
|
72.6
|
36.3
|
36.3
|
|
103.5
|
122.6
|
124.6
|
126.1
|
127.5
|
137.1
|
143.5
|
72.5
|
72.5
|
72.5
|
36.2
|
36.2
|
|
103.7
|
122.4
|
124.4
|
125.8
|
127.3
|
136.8
|
143.2
|
72.3
|
72.3
|
72.3
|
36.2
|
36.2
|
|
103.9
|
122.1
|
124.2
|
125.6
|
127.0
|
136.6
|
142.9
|
72.2
|
72.2
|
72.2
|
36.1
|
36.1
|
|
104.1
|
121.9
|
123.9
|
125.4
|
126.8
|
136.3
|
142.7
|
72.0
|
72.0
|
72.0
|
36.0
|
36.0
|
|
104.3
|
121.7
|
123.7
|
125.1
|
126.6
|
136.0
|
142.4
|
71.9
|
71.9
|
71.9
|
36.0
|
36.0
|
|
104.5
|
121.4
|
123.4
|
124.9
|
126.3
|
135.8
|
142.1
|
71.8
|
71.8
|
71.8
|
35.9
|
35.9
|
|
104.7
|
121.2
|
123.2
|
124.6
|
126.1
|
135.5
|
141.8
|
71.6
|
71.6
|
71.6
|
35.8
|
35.8
|
|
104.9
|
121.0
|
123.0
|
124.4
|
125.8
|
135.3
|
141.6
|
71.5
|
71.5
|
71.5
|
35.7
|
35.7
|
|
105.1
|
120.7
|
122.7
|
124.2
|
125.6
|
135.0
|
141.3
|
71.4
|
71.4
|
71.4
|
35.7
|
35.7
|
|
105.3
|
120.5
|
122.5
|
123.9
|
125.4
|
134.8
|
141.0
|
71.2
|
71.2
|
71.2
|
35.6
|
35.6
|
|
105.5
|
120.3
|
122.3
|
123.7
|
125.1
|
134.5
|
140.8
|
71.1
|
71.1
|
71.1
|
35.5
|
35.5
|
|
105.7
|
120.1
|
122.0
|
123.5
|
124.9
|
134.2
|
140.5
|
71.0
|
71.0
|
71.0
|
35.5
|
35.5
|
|
105.9
|
119.8
|
121.8
|
123.2
|
124.6
|
134.0
|
140.2
|
70.8
|
70.8
|
70.8
|
35.4
|
35.4
|
|
106.1
|
119.6
|
121.6
|
123.0
|
124.4
|
133.7
|
140.0
|
70.7
|
70.7
|
70.7
|
35.3
|
35.3
|
|
106.3
|
119.4
|
121.4
|
122.8
|
124.2
|
133.5
|
139.7
|
70.6
|
70.6
|
70.6
|
35.3
|
35.3
|
|
106.5
|
119.2
|
121.1
|
122.5
|
123.9
|
133.2
|
139.4
|
70.4
|
70.4
|
70.4
|
35.2
|
35.2
|
|
106.7
|
118.9
|
120.9
|
122.3
|
123.7
|
133.0
|
139.2
|
70.3
|
70.3
|
70.3
|
35.1
|
35.1
|
|
106.9
|
118.7
|
120.7
|
122.1
|
123.5
|
132.7
|
138.9
|
70.2
|
70.2
|
70.2
|
35.1
|
35.1
|
|
107.1
|
118.5
|
120.4
|
121.8
|
123.2
|
132.5
|
138.7
|
70.0
|
70.0
|
70.0
|
35.0
|
35.0
|
|
107.3
|
118.3
|
120.2
|
121.6
|
123.0
|
132.2
|
138.4
|
69.9
|
69.9
|
69.9
|
34.9
|
34.9
|
|
107.5
|
118.0
|
120.0
|
121.4
|
122.8
|
132.0
|
138.1
|
69.8
|
69.8
|
69.8
|
34.9
|
34.9
|
|
107.7
|
117.8
|
119.8
|
121.2
|
122.6
|
131.8
|
137.9
|
69.6
|
69.6
|
69.6
|
34.8
|
34.8
|
|
107.9
|
117.6
|
119.6
|
120.9
|
122.3
|
131.5
|
137.6
|
69.5
|
69.5
|
69.5
|
34.8
|
34.8
|
|
108.1
|
117.4
|
119.3
|
120.7
|
122.1
|
131.3
|
137.4
|
69.4
|
69.4
|
69.4
|
34.7
|
34.7
|
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