Biconical Antennas
- Details
Collapsible or Open Conical Elements
Biconical Antennas have dipole like characteristics (e.g. circular directional pattern in the H-plane,"8"-shaped in the E-plane, fixed phase center, comparable gain), with an enormous wide bandwidth achieved by the double cone elements. One of the earliest and worldwide most popular biconical antenna designs is the BBA 9106 with balun VHA 9103 B. During the last years a growing need for expanded frequency ranges arised, which led to the design of biconical antennas reaching down to frequencies of 20 MHz and up to 18 GHz and above. A further increase of bandwidth was achieved with qualified 4:1 baluns, providing a typical gain increase of approx. 6 dB at the lower frequency range. The biconical elements can be mounted and dismounted within a few seconds providing perfect contact repeatability thanks to special clamping fixtures. A small wrench made of insulating material is supplied with the balun, it is tied to the balun head and thus always available whenever needed. Biconical antennas can be used for many applications, in which half-wave dipoles have been used traditionally. An enormous reduction of measurement time can be achieved, because the time consuming tuning of the antenna elements to the half wavelength is not needed, an important condition for sweeped broadband measurements. In typical dipole applications several discrete frequencies are measured, in contrast the biconical antenna allows continuous sweeps, where site anomalies are discovered much easier.
Typical applications for biconical antennas are:
- Broadband RX-antenna for emission testing (20-300 MHz)
- TX-antenna for immunity testing, especially at low frequencies
- Measurements of shielding effectiveness
- Evaluation of test sites e.g. anechoic rooms (FAC) and open area test sites (OATS)
- Passive field probe for immunity testing
A big variety of baluns and biconical elements allows to choose the optimum antenna for each specific application. The baluns marked with "RX" are especially designed for receiving applications (because of their superior symmetry), the baluns marked with "TX" are suitable for immunity testing with high power.
BBA 9106 biconical elements with different antenna holder/balun combinations |
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BBA 9106 + VHA 9103 B BBA 9106 biconical elements in combination with the VHA 9103B antenna holder/balun. 30 - 300 MHz 10 W RX
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BBA 9106 + VHBB 9124 BBA 9106 biconical elements in combination with the VHBB 9124 antenna holder/balun. 30 - 300 MHz 10 W RX
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BBA 9106 + HFBA 9122 HFBA 9122 broadband balun/holder with BBA 9106 biconical elements especially to measure very high field strength. (0.1) 0.15 - 300 (500) MHz
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BBA 9106 + VHBA 9123 VHBA 9123 broadband balun/holder with BBA 9106 biconical elements. 30 - 300 MHz TX 100 W
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BBA 9106 + VHBC 9133 VHB 9133 broadband balun/holder with BBA 9106 biconical elements. 30 - 300 MHz TX 1 KW
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BBA 9106 + VHBD 9134 VHBD 9134 broadband balun/holder with BBA 9106 biconical elements. 30 - 200 MHz TX 2.5 KW
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BBAL 9136 biconical elements with different antenna holder/balun combinations |
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BBAL 9136 + VHA 9103 B BBAL 9136 biconical elements in combination with the VHA 9103B antenna holder/balun. 20 - 200 MHz 10 W RX
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BBAL 9136 + VHBB 9124 BBAL 9136 biconical elements in combination with the VHBB 9124 antenna holder/balun. 20 - 200 MHz 10 W RX
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BBAL 9136 + HFBA 9122 HFBA 9122 broadband balun/holder with BBAL 9136 biconical elements especially to measure very high field strength. (0.1) 0.15 - 300 (500) MHz 10W
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BBAL 9136 + VHBA 9123 VHBA 9123 broadband balun/holder with BBAL 9136 biconical elements. 20 - 200 MHz TX 100 W
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BBAL 9136 + VHBC 9133 VHB 9133 broadband balun/holder with BBAL 9136 biconical elements. 20 - 200 MHz TX 1 KW
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BBAL 9136 + VHBD 9134 VHBD 9134 broadband balun/holder with BBAL 9136 biconical elements. 20 - 200 MHz TX 2.5 KW
new: Booster Coils The booster coils are used to generate highest field strengths in conjunction with a high power balun (e.g. VHBD 9134-4 or VHBD 9134) and radiating elements (e.g. BBAL 9136 or BBAE 9179) in the frequency range from 20 MHz to approx. 60 MHz.
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BBAK 9137 biconical elements with different antenna holder/balun combinations |
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BBAK 9137 + VHA 9103 B BBAK 9137 biconical elements in combination with the VHA 9103B antenna holder/balun. 45 - 450 MHz 10 W RX
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BBAK 9137 + HFBA 9122 HFBA 9122 broadband balun/holder with BBAK 9137 biconical elements especially to measure very high field strength. (0.1) 0.15 - 300 (500) MHz 10W
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BBAK 9137 + VHBB 9124 BBAK 9137 biconical elements in combination with the VHBB 9124 antenna holder/balun. 45 - 450 MHz 10 W RX
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BBVK 9138 biconical elements with different antenna holder/balun combinations |
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BBVK 9138 + VHA 9103 B BBVK 9138 biconical elements in combination with the VHA 9103B antenna holder/balun. 60 - 600 MHz 10 W RX
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BBVK 9138 + HFBA 9122 HFBA 9122 broadband balun/holder with BBVK 9137 biconical elements. (0.1) 0.15 - 300 (500) MHz 10W
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BBVK 9138 + VHBB 9124 BBVK 9138 biconical elements in combination with the VHBB 9124 antenna holder/balun. 60 - 600 MHz 10 W RX
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BBVU 9135 biconical elements with different antenna holder/balun combinations |
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BBVU 9135 + UBAA 9114 BBVU 9135 biconical elements in combination with the UBAA 9114 antenna holder/balun. low-loss 30 - 1000 MHz 5 W RX
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BBVU 9135 + UBAA 9115 BBVU 9135 biconical elements in combination with the UBAA 9115 antenna holder/balun. extremely high symmetry 30 - 1000 MHz 5 W RX
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BBUK 9139 biconical elements with different antenna holder/balun combinations |
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BBUK 9139 + UBAA 9114 BBUK 9139 biconical elements in combination with the UBAA 9114 antenna holder/balun. low-loss 30 - 1200 MHz 5 W RX
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BBUK 9139 + UBAA 9115 BBUK 9139 biconical elements in combination with the UBAA 9115 antenna holder/balun. extremely high symmetry 30 - 1200 MHz 5 W RX
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SBA 9113 B small biconical antenna 80 MHz - 3 GHz for harmonics measurements acc. to IEC61000-4-3
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SBA 9113 small biconical microwave antenna 0.5 - 3 GHz 20 W CISPR16-1-4:2007-02 Ed. 2.0 Site validation above 1 GHz
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420 NJ Elements for radiated immunity caused by hand portable transmitters with SBA 9113 or SBA 9113 mini version for the Ford standard RI115 (Ford EMC CS 2009) Option: Opt: Spacer 50 Spacer made of Polystyrene to set the 420 NJ elements test distance to 50 mm.
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SBA 9112 small biconical microwave antenna (1) 3 - 18 GHz 10 W including transport case CISPR16-1-4:2007-02 Ed. 2.0 The SBA 9112 are compliant to CISPR 16-1-4 for site validation above 1 GHz. Site validation above 1 GHz (Site-VSWR)
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SBA 9119 small biconical microwave antenna 1 - 6 GHz 20 W The SBA 9119 are compliant to CISPR 16-1-4 for site validation above 1 GHz. Including transport case.
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UBA 9116 Biconical UHF broadband antenna (160) 300 -1000 (1100) MHz
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VUBA 9117 Biconical VHF-UHF broadband antenna (30) 150 -1000 MHz
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RS 16 Vertical polarized microwave biconical antenna (0,5) 1 - 6 (8,5) GHz with omni directional H-plane pattern
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RE 1790 Vertical polarized VHF- UHF biconical antenna (170) 230 - 1000 (1100) MHz with omni directional H-plane pattern
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RE 4590 Vertical polarized VHF- UHF biconical antenna (330) 450 - 1000 (1100) MHz with omni directional H-plane pattern
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RS 0460 Vertically polarised symmetrical biconical antenna 0,4 - 6 GHz omnidirectional in the H-plane.
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