Cryogenic 2–13 GHz Eleven Feed for Reflector Antennas in Future Wideband Radio Telescopes

Yang, Jian; Pantaleev, Miroslav; Kildal, Per-Simon; Klein, B.; Karandikar, Yogesh B.; Helldner, Leif; Wadefalk, Niklas; Beaudoin, Christopher

doi:10.1109/tap.2011.2122229

Cited by 84 publications

(86 citation statements)

References 27 publications

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“…Therefore, we have not yet measured data for efficiencies yet. From the previous experience we had in [12], we believe that the simulated sub-efficiencies are reliable. Then, the figure states that the 1.2 -10 GHz Eleven feed has good efficiencies, such as almost 0 dB phase efficiency , better than -0.2 dB polarization efficiency , better than -0.4 dB spillover efficiency , about -0.5 dB BOR 1 efficiency 1 except at 1.2 GHz, almost constant illumination efficiency , and better than -2.5 dB total aperture efficiency .…”

Section: Simulated and Measured Resultsmentioning

confidence: 67%

“…1, which is created by the same geometry parameters (scaling factor , length and widths of the folded dipole in term of wavelength , , and height of the dipoles over the ground plane ℎ, etc.) as those used in the 2 -13 GHz Eleven feed presented in [12]. The reason for this is that we want to use the same center puck, feeding network and ports for both the 1.2 -10 GHz and 2 -13 GHz Eleven feeds.…”

Section: Compacting the Eleven Antenna By Folding Down Outermost mentioning

confidence: 99%

“…In addition, it has low profile and simple geometry. Therefore, the Eleven antenna is a perfect candidate for decade bandwidth feed for reflectors for radio telescopes, which has been demonstrated in [3]- [12].…”

Section: Introductionmentioning

confidence: 99%

“…The purpose of this work is to design a compact 1.2 -10 GHz Eleven feed for SKA project, which fits in the same cryostat as the 2 -13 GHz Eleven feed for VLBI2010 [12]. The compacting is done by folding down the outermost three nonradiating elements in the array.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Compact dual-polarized 1.2 - 10 GHz Eleven feed by folding outer elements for large decade-bandwidth radio telescopes

Yang

Pantaleev

Kildal

et al. 2011

2011 IEEE International Symposium on Antennas and Propagation (APSURSI)

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Citation for the published paper: Yang, J. ; Pantaleev, M. ; Abstract-The Eleven antenna is a log-periodic folded-dipolepair array which has two unique radiation characteristics: constant beamwidth and fixed phase center location over decade bandwidth. Therefore, the Eleven antenna is very suitable as a feed for reflector antennas. This paper presents a new compact design of 1.2 -10 GHz Eleven antenna by folding down the outermost elements of the array. By doing so, it is possible to put the Eleven feed inside a compact cryostat, which is critical for applications in radio telescopes. The new compacted Eleven antenna has only 40% volume of the original standard Eleven antenna with similar performance. Simulations and measurements have verified the design and are presented in the paper.

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Section: Simulated and Measured Resultsmentioning

confidence: 67%

Section: Compacting the Eleven Antenna By Folding Down Outermost mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Compact dual-polarized 1.2 - 10 GHz Eleven feed by folding outer elements for large decade-bandwidth radio telescopes

Yang

Pantaleev

Kildal

et al. 2011

2011 IEEE International Symposium on Antennas and Propagation (APSURSI)

Self Cite

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show abstract

“…Therefore, the new antenna is referred to as the self-grounded Bow-Tie. This truncation method is partly inspired by our other UWB antenna research activities [6]- [12]. Fig.…”

Section: Geometrical Configuration Of Self-grounded Bow-tiementioning

confidence: 99%

The self-grounded Bow-Tie antenna

Yang

Kishk

2011

2011 IEEE International Symposium on Antennas and Propagation (APSURSI)

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Abstract-The self-grounded Bow-Tie is a new type ultrawide band (UWB) small antenna. It is compact, simple and has low profile and directional UWB radiation characteristics. Simulations and measurements have shown its ultra-wideband performance, such as about -10 dB reflection coefficient and stable radiation patterns over a frequency range of 2 -15 GHz, and good time-domain impulse response. Penetration ability of the antenna through a concrete wall has been also tested. Compared to a Vivaldi antenna, the test shows the superiority of the self-grounded Bow-Tie to the Vivaldi.

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An active,ultra‐wideband dual‐polarizedtightly coupled dipole subarray for satellite communication

Chen

Wang

et al. 2021

Int J RF Microw Comput Aided Eng

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How to integrate the tightly coupled dipole array (TCDA) with tile‐based power combination network (PCN) has never been discussed in literatures. However, it is a critical issue should be resolved for TCDA's compact design. This article investigates a crucial front‐end component—8 × 8 dual‐polarized tightly coupled dipole subarray (TCDSA)—for ultra‐wideband satellite communication (SATCOM). A tile‐based network architecture is proposed to realize a low‐volume active PCN for the TCDSA. Then, a vertical interconnection module is proposed to totally eliminate coaxial cables between antenna elements and the PCN. A prototype of the TCDSA is developed. The PCN is elaborately integrated with the antenna elements in a compact space within a total thickness of 2.0 cm. The overall height of the prototype is 206.6 mm (2.07λH), where λH is the wavelength at the high‐end operating frequency. The fabricated dual‐polarized prototype demonstrates a decade bandwidth of 0.3–3.0 GHz with low cross‐polarization levels (<−30.0 dB). Because of the compact structure and excellent performance, the developed TCDSA will find applications in future receiving systems for SATCOM.

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Cryogenic 2–13 GHz Eleven Feed for Reflector Antennas in Future Wideband Radio Telescopes

Cited by 84 publications

References 27 publications

Compact dual-polarized 1.2 - 10 GHz Eleven feed by folding outer elements for large decade-bandwidth radio telescopes

Compact dual-polarized 1.2 - 10 GHz Eleven feed by folding outer elements for large decade-bandwidth radio telescopes

The self-grounded Bow-Tie antenna

An active,ultra‐wideband dual‐polarizedtightly coupled dipole subarray for satellite communication

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