A Compact Dual-Band Feed for Reflector Antennas Based on Choke Horn and Circular Eleven Antenna

Yasin, Adeel; Yang, Jian; Ostling, T.

doi:10.1109/tap.2009.2029385

Cited by 21 publications

(9 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was first reported in [1] and later in [2]. In [3] it was shown that the pattern symmetry, and thus the feed efficiency, improves with the dipoles being circular. Some results showing the difference in radiation pattern performance between the linear dipole array and the circular dipole array for dipoles of a half-wavelength were presented in [4].…”

Section: Introductionmentioning

confidence: 74%

Radiation performance evaluation and improvement of a pair of dipoles over a ground plane

Lehmensiek¹,

Villiers

2013

2013 IEEE Antennas and Propagation Society International Symposium (APSURSI)

View full text Add to dashboard Cite

The performance and radiation mechanism of a two element elliptical dipole array feed is investigated in detail. The performance metric considers both the maximum crosspolarization level, which is a function of the axial symmetry and cross-polarization of the feed, and the efficiency performance when evaluated on a general reflector system. It is shown that for a two element dipole array to achieve optimum performance the dipoles need to be perfectly circular and the dipole lengths need to be longer than a half wavelength to allow for a second order current mode to coexist with the fundamental mode.

show abstract

Section: Introductionmentioning

confidence: 74%

Radiation performance evaluation and improvement of a pair of dipoles over a ground plane

Lehmensiek¹,

Villiers

2013

2013 IEEE Antennas and Propagation Society International Symposium (APSURSI)

View full text Add to dashboard Cite

show abstract

“…Very Long Baseline Interferometry (VLBI) is one of the three major modern geodesy space-based observing systems. With the importance of high accuracy geodesy to science and society, the new generation of VLBI system, VLBI2010 [1], is aiming to the following goals: 1) 1 mm measurement accuracy on global baselines; 2) continuous measurements for time series of station positions and Earth orientation parameters; 3) turnaround time to initial geodetic results of less than 24 hours; 4) a broad, continuous frequency range (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) observation.…”

Section: Introductionmentioning

confidence: 99%

Development of the cryogenic 2–14 GHz Eleven feed system for VLBI2010

Yang

Panteleev

Ekebrand

et al. 2012

2012 6th European Conference on Antennas and Propagation (EUCAP)

View full text Add to dashboard Cite

show abstract

“…The Eleven antenna is a multiport antenna and this can be utilized for generating tracking beams [13]. A combination of an Eleven antenna and a high frequency horn for a dual band feed is described in [14].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Reflection Coefficient of Large Log-Periodic Array by Computing Only a Small Part of It

Yang

Kildal

2011

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

A new method is described in the paper to predict the reflection coefficient of a complete large log-periodic array (with large number of elements) from the computed performance of a small part of the array. The small part is referred to as the partial array. The method involves computing the embedded S-parameters between all the elements of this partial array and then using these S-parameters to predict the performance of the full array. As an example, the method has been applied to optimize the Eleven antenna for 2-13 GHz. The result of the optimization is that the reflection coefficient is improved significantly to be below 10 dB over the whole frequency band. The results have been verified by measurements.

show abstract

A Compact Dual-Band Feed for Reflector Antennas Based on Choke Horn and Circular Eleven Antenna

Cited by 21 publications

References 9 publications

Radiation performance evaluation and improvement of a pair of dipoles over a ground plane

Radiation performance evaluation and improvement of a pair of dipoles over a ground plane

Development of the cryogenic 2–14 GHz Eleven feed system for VLBI2010

Optimization of Reflection Coefficient of Large Log-Periodic Array by Computing Only a Small Part of It

Contact Info

Product

Resources

About

A Compact Dual-Band Feed for Reflector Antennas Based on Choke Horn and Circular Eleven Antenna

Cited by 21 publications

References 9 publications

Radiation performance evaluation and improvement of a pair of dipoles over a ground plane

Radiation performance evaluation and improvement of a pair of dipoles over a ground plane

Development of the cryogenic 2&#x2013;14 GHz Eleven feed system for VLBI2010

Optimization of Reflection Coefficient of Large Log-Periodic Array by Computing Only a Small Part of It

Contact Info

Product

Resources

About

Development of the cryogenic 2–14 GHz Eleven feed system for VLBI2010