News Release from: Rohde and Schwarz
Edited by the Electronicstalk Editorial Team on 18 November 2004
Log-periodic antenna covers a big band
The HL033 is a linearly polarised log-periodic antenna suitable for general transmission and reception applications in the frequency range from 80MHz to 2 GHz.
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The HL033 from Rohde and Schwarz is a linearly polarised log-periodic antenna. Because of its large bandwidth, it is suitable for general transmission and reception applications in the frequency range from 80MHz to 2 GHz. In connection with a test or monitoring receiver, the antenna can determine the angle of incidence and polarisation of electromagnetic waves or perform field-strength measurements, for example.
Its rugged design reliably protects the HL033 against wind, lightning and other climatic influences.
For mobile applications or in cramped labs, log-periodic antennas such as the HL033 are highly beneficial.
As input impedance and radiation patterns are largely frequency-independent, wide frequency ranges (greater than 20:1) can be covered by using a log-periodic antenna.
The R and S HL033 with its extremely large bandwidth from 80MHz to 2GHz even features a frequency ratio of 25:1.
It is thus no longer necessary to set up several antennas for mobile applications or to change antennas in test labs, which is also very time-consuming.
Regulatory, military and security authorities as well as EMC test labs can use the HL033 for a variety of applications.
For example, in combination with a test or monitoring receiver, the antenna makes it possible to intercept unauthorised radio transmitters or to determine the angle of incidence and the polarisation plane of electromagnetic waves.
The R and S HL033 is also suitable for CE approval tests on electronic devices as well as for field-strength measurements.
Plus, it can be used as a transmit antenna in the entire frequency range.
Each antenna is individually calibrated.
The required antenna-specific k factor is supplied as a file on a CD-ROM.
The HL033 can optionally be fitted with a centre bracket.
It makes the antenna more stable at higher wind speeds, allowing it to operate even in exposed areas.
Because of the use of plastic, aluminium and stainless steel, the HL033 is particularly resistant to climatic influence.
Moreover, it is well protected against electrostatic charges and lightning.
As a result, the antenna has a long service life, offering high safety of investment.
The HL033 is available now from Rohde and Schwarz.
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