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.
Overview Biconical Antennas
Collapsible or Open Conical Elements
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
BBA 9106 + VHA 9103 B
BBA 9106 biconical elements in combination with the VHA 9103B antenna holder/balun.
30 – 300 MHz
10 W
RX
BBA 9106 + VHBB 9124
BBA 9106 biconical elements in combination with the VHBB 9124 antenna holder/balun.
30 – 300 MHz
10 W
RX
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
BBA 9106 + VHBA 9123
VHBA 9123 broadband balun/holder with BBA 9106 biconical elements.
30 – 300 MHz
TX
100 W
BBA 9106 + VHBC 9133
VHB 9133 broadband balun/holder with BBA 9106 biconical elements.
30 – 300 MHz
TX
1 KW
BBA 9106 + VHBD 9134
VHBD 9134 broadband balun/holder with BBA 9106 biconical elements.
30 – 200 MHz
TX
2.5 KW
BBAL 9136 biconical elements with different antenna holder/balun combinations
BBAL 9136 + VHA 9103 B
BBAL 9136 biconical elements in combination with the VHA 9103B antenna holder/balun.
20 – 200 MHz
10 W
RX
BBAL 9136 + VHBB 9124
BBAL 9136 biconical elements in combination with the VHBB 9124 antenna holder/balun.
20 – 200 MHz
10 W
RX
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
BBAL 9136 + VHBA 9123
VHBA 9123 broadband balun/holder with BBAL 9136 biconical elements.
20 – 200 MHz
TX
100 W
BBAL 9136 + VHBC 9133
VHB 9133 broadband balun/holder with BBAL 9136 biconical elements.
20 – 200 MHz
TX
1 KW
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.
Datasheet BCOI 9180
BBAK 9137 biconical elements with different antenna holder/balun combinations
BBAK 9137 + VHA 9103 B
BBAK 9137 biconical elements in combination with the VHA 9103B antenna holder/balun.
45 – 450 MHz
10 W
RX
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
BBAK 9137 + VHBB 9124
BBAK 9137 biconical elements in combination with the VHBB 9124 antenna holder/balun.
45 – 450 MHz
10 W
RX
BBVK 9138 biconical elements with different antenna holder/balun combinations
BBVK 9138 + VHA 9103 B
BBVK 9138 biconical elements in combination with the VHA 9103B antenna holder/balun.
60 – 600 MHz
10 W
RX
BBVK 9138 + HFBA 9122
HFBA 9122 broadband balun/holder with BBVK 9137 biconical elements.
(0.1) 0.15 – 300 (500) MHz
10W
BBVK 9138 + VHBB 9124
BBVK 9138 biconical elements in combination with the VHBB 9124 antenna holder/balun.
60 – 600 MHz
10 W
RX
BBVU 9135 biconical elements with different antenna holder/balun combinations
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
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
BBUK 9139 biconical elements with different antenna holder/balun combinations
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
Datasheet BBUK 9139+UBAA9114
Radiation Pattern
Datasheet UBAA9114
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
SBA 9113 B
small biconical antenna
80 MHz – 3 GHz
for harmonics measurements acc. to IEC61000-4-3
SBA 9113
small biconical microwave antenna
0.5 – 3 GHz
20 W
miniversion on request
CISPR16-1-4:2007-02 Ed. 2.0
Site validation above 1 GHz
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.
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)
mini version on request
Datasheet SBA 9112
E-plane pattern
H-plane pattern
VSWR
Fieldstrength
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.
UBA 9116
Biconical UHF broadband antenna
(160) 300 -1000 (1100) MHz
VUBA 9117
Biconical VHF-UHF broadband antenna
(30) 150 -1000 MHz
RS 16
Vertical polarized microwave biconical antenna
(0,5) 1 – 6 (8,5) GHz
with omni directional H-plane pattern
RE 1790
Vertical polarized VHF- UHF biconical antenna
(170) 230 – 1000 (1100) MHz
with omni directional H-plane pattern
RE 4590
Vertical polarized VHF- UHF biconical antenna
(330) 450 – 1000 (1100) MHz
with omni directional H-plane pattern
RS 0460
Vertically polarised symmetrical biconical antenna
0,4 – 6 GHz
omnidirectional in the H-plane.