Analysis of a compact ultra-wideband antenna for radio frequency applications

Bandyopadhyay, Anup; Anis, M.; Joestingmeier, A.; Meyer, Tobias; Omar, A.S.

doi:10.1109/aps.2007.4395907

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…4, antennas of Snail-shaped antenna described in [18] mounted in the small Magdeburg reverberation chamber. this kind are investigated in [18]) that we use as transmitting and receiving antennas in the small reverberation chamber, logarithmic-periodic dipole array antennas and double-ridged waveguide horn antennas used in the large chamber (see. Fig.…”

Section: Theorymentioning

confidence: 99%

Yet another antenna efficiency measurement method in reverberation chambers

Krauthauser

Herbrig²

2010

2010 IEEE International Symposium on Electromagnetic Compatibility

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Radiation efficiency is one of the most difficult to measure quantities of antennas. Established methods are mostly either based on the Weehler-Cap-Method and limited to small antenna, or require a full 3D scan around he antenna under test. We present an alternative method for the measurement of antenna efficiency in the reverberation chamber. The measurement is based on an emission measurement method presented in [1]. Using this method, antenna efficiencies can be estimated along with the emission measurement of the equipment under test (EUT). This can help to reduce the uncertainty during radiated emission testing in the reverberation chamber. Of course, the method can also be used without an EUT present in the chamber to characterize the antenna only.

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Section: Theorymentioning

confidence: 99%

Yet another antenna efficiency measurement method in reverberation chambers

Krauthauser

Herbrig²

2010

2010 IEEE International Symposium on Electromagnetic Compatibility

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“…The transmit antenna works between 2.4 GHz and 2.6 GHz with gain 9 dBi at the resonance frequency [12], while the receive antenna has an ultra-wideband characteristics in the frequency range from 800 MHz to 18 GHz [13]. Both antennas have been fabricated in the Institute of Electronics, Signal Processing and Communications (IESK) at the Otto von Guericke University of Magdeburg, Germany.…”

Section: The Antennasmentioning

confidence: 99%

Frequency Offset Compensation for OFDM Systems Using a Combined Autocorrelation and Wiener Filtering Scheme

Ramadan Ali,

Khanzada,

Omar

2010

JTIT

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One of the orthogonal frequency division multiplexing (OFDM) system disadvantages is its sensitivity to frequency offset and phase noise, which lead to losing the orthogonality between the subcarriers and thereby degrade the system performance. In this paper a joint scheme for frequency offset and pilot-based channel estimation is introduced in which the frequency offset is first estimated using an autocorrelation method, and then is fined further by applying an iterative phase correction by means of pilot-based Wiener filtering method. In order to verify the capability of the estimation algorithm, the scheme has been implemented and tested using a real measurement system in a multipath indoor environment. The results show the algorithm capability of compensating for the frequency offset with different transmission and channel conditions.

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Analysis of a compact ultra-wideband antenna for radio frequency applications

Cited by 2 publications

References 2 publications

Yet another antenna efficiency measurement method in reverberation chambers

Yet another antenna efficiency measurement method in reverberation chambers

Frequency Offset Compensation for OFDM Systems Using a Combined Autocorrelation and Wiener Filtering Scheme

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