Transcript
Accessories
Antennas Side View
Top View
Antenna Basics Antennas are designed and built to suit a particular frequency or frequency band. If you use an antenna designed for a different frequency, then it will only radiate a small portion of the generated RF power from the transmitter, and it will only absorb a small portion of the RF signal power for the receiver. Using the correct frequency antenna is very important.
Isotropic pattern Dipole pattern
Dipole and collinear antennas The polarity of these antennas is the same as the main axis, and they are normally installed vertically. Dipole and collinear antennas are called omnidirectional as they transmit equally in all directions in the horizontal plane. The radio path is often made up of strong reflected signals over relatively short distances and the direction of incoming signals is not always obvious.
Collinear pattern
3dB Collinear Antenna
Yagi antennas Yagi antennas are directional along the central beam of the antenna. The folded element is towards the back of the antenna, and the antenna should be “pointed” in the direction of the transmission. Yagis are normally available from 2-element up to 16-element Yagis. The more reflector elements added, the higher gain in the forward direction and the lower gain to the sides and rear. Also, as more elements are added, the directional angle becomes smaller as the gain is more tightly focused.
Frequency
Type
900MHz 900MHz 900MHz 900MHz 900MHz 900MHz 900MHz 900MHz 900MHz 900MHz 900MHz 900MHz
Dipole Dipole Dipole Omni Whip Whip Omni Yagi Colinear Yagi Yagi Yagi
2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz
Whip Whip Omni Omni Omni Omni Yagi Omni Yagi
dB Gain Unity Unity -2 3 3 5 6 6.5 8 10 12 14
Dimension length mm(inches) 90 (3.5") 400 (16") 150 (6") 1308 (51.5") 355 (14") 584 (23") 1829 (72") 330 (13") 1370 (54") 610 (24") 940 (37") 1600 (63")
2 3 4 6 8 10 10 12 14
113 (4.4") 55 (2.17") 205 (8.1") 295 (12") 513 (2.2") 914 (36") 114 (4.5") 1118 (44") 356 (14")
Direction of main beam
Main Lobe
Yagi Antenna
Typical Yagi directional pattern
Type
Connection Type
Mounting Bracket
Part No.
WI-ANT-DEMO-900 WI-ANT-DPL-0-16 WI-ANT-DPL-DJ900-1 WI-ANT-900MHZ-3DB OMNI NF WI-ANT-900MHZ-3DB STUB-MAG WI-ANT-900MHZ-5DB WHIP NF WI-ANT-900MHZ-6DB OMNI NF WI-ANT-900MHZ-6.5DBYAGI-2' NF WI-ANT-CLR-900-8-54 WI-ANT-900MHZ-10DBYAGI-2' NF WI-ANT-900MHZ-12DBYAGI-2' NF WI-ANT-900MHZ-14DBYAGI-2' NF
SMA male* SMA male c/w 15ft cable SMA male c/w 3ft cable N-Type Female For MAG Base N-Type Female N-Type Female N-Type Female N-Type Female N-Type Female N-Type Female N-Type Female
N/A (Direct Radio Connection) Included in Kit Included in Kit Includes 6720005268 CLAMP/BRKT Only use w MAG base 6720005263 6"Ground Plane Included Includes 6720005268 CLAMP/BRKT Includes 6720005266 CLAMP/BRKT 672005110 Includes 6720005266 CLAMP/BRKT Includes 6720005266 CLAMP/BRKT Includes 6720005267 CLAMP/BRKT
6720005089 6720005080 6720005086 6720005228 6720005230 6720005227 6720005229 6720005221 6720005082 6720005223 6720005225 6720005226
WI-ANT-24GHZ-2DB DUCK SMA-M WI-ANT-24GHZ-3DB FOR MAGBASE WI-ANT-24GHZ-4DB OMNI NF WI-ANT-24GHZ-6DB OMNI NF WI-ANT-24GHZ-8DB OMNI NF WI-ANT-24GHZ-10DB OMNI NF WI-ANT-24GHZ-10DB YAGI NF WI-ANT-24GHZ-12DB OMNI NF WI-ANT-24GHZ-14DB YAGI NF
SMA male* For MAG Base Only N-Type Female N-Type Female N-Type Female N-Type Female N-Type Female N-Type Female N-Type Female
N/A (Direct Radio Connection) Use w MAG base 6720005263 Includes 6720005210,FITS 2.0" MAST Includes 6720005210,FITS 2.0" MAST Includes 6720005210,FITS 2.0" MAST Includes 6720005210,FITS 2.0" MAST Includes 6720005266 CLAMP/BRKT Includes 6720005211,FITS 2.0" MAST Includes6720005266 CLAMP/BRKT
6720005207 6720005208 6720005200 6720005201 6720005204 6720005202 6720005205 6720005203 6720005206
Additional Antennas/Cales/Accessories available on request from Weidmuller * For Direct Radio Connection
24
Minor Lobes
