A polarization reconfigurable antenna for satellite communication

Sathe, Shreyas J.; Mudiganti, Jagadish C.

doi:10.1109/iccsp.2017.8286698

Cited by 6 publications

(3 citation statements)

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“…We therefore sorted each fraction from cord blood or HIS BM ( Figure 4 ), and analysed their responses to various cytokine stimuli. We found that no population from either cord blood or HIS BM gave rise to any progeny in response to granulocyte macrophage colony stimulating factor (GM-CSF) [ 18 ], suggesting a lack of myeloid potential in any of these progenitors. This discrepancy not withstanding, cord blood or HIS BM derived progenitors followed the same broad process of lymphoid lineage commitment as their foetal bone marrow counterparts.…”

Section: Resultsmentioning

confidence: 99%

Identification of Novel Human NK Cell Progenitor Subsets

Sathe

Pang

Delconte

et al. 2017

IJMS

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Understanding the pathways and regulation of human haematopoiesis, in particular, lymphopoiesis, is vital to manipulation of these processes for therapeutic purposes. However, although haematopoiesis has been extensively characterised in mice, translation of these findings to human biology remains rudimentary. Here, we describe the isolation of three progenitor subsets from human foetal bone marrow that represent differential stages of commitment to the natural killer (NK) cell lineage based on IL-15 responsiveness. We identify CD7 as a marker of IL-15 responsive progenitors in human bone marrow and find that this expression is maintained throughout commitment and maturation. Within the CD7+ fraction, we focussed on the lineage potential of three subsets based on CD127 and CD117 expression and observed restricted lymphoid and biased NK cell potential amongst subsets. We further demonstrate the presence of subsets similar in both phenotype and function in umbilical cord blood and the bone marrow of humanised mice, validating these as appropriate sources of progenitors for the investigation of human haematopoiesis. Overall, we describe several stages in the process of lymphopoiesis that will form the basis of investigating the regulators of this process in humans.

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Section: Resultsmentioning

confidence: 99%

Identification of Novel Human NK Cell Progenitor Subsets

Sathe

Pang

Delconte

et al. 2017

IJMS

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“…Many electrical reconfigurable antennas use p-i-n diode [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19] or MEMS [20,21] as RF switches, which can be switched faster and more convenient than mechanical reconfigurable antennas [22,23,24,25,26,27,28]. In some designs, switches are integrated into the antenna, chang-ing the surface current distribution on the antenna by switching on and off to achieve different polarizations [5,6,7,8,9,10,11,12,13,14,15,16,20,21].…”

Section: Introductionmentioning

confidence: 99%

“…The feeding network can provide three diode states corresponding to four polarizations. In [19], a polarization reconfigurable antenna with three diode states has been presented. By controlling the state of two diodes respectively, four polarizations can be achieved.…”

Section: Introductionmentioning

confidence: 99%

A compact reconfigurable feeding network for 5G quadri-polarization antennas

Huang

Sun

Zhang

et al. 2022

IEICE Electron. Express

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This letter presents a compact reconfigurable feeding network, which can provide four polarizations. The feeding network includes a branch-line hybrid, two p-i-n diodes, and two grounded capacitors. By manipulating the on/off states of the two diodes, the capacitor can be selectively integrated into the hybrid circuit. Hence, the power distribution of the output ports is changed. The feeding network operating in state I provides a pair of orthogonal linear polarizations (LPs) when both diodes are turned off. The feeding network operating in state II provides a pair of orthogonal circular polarizations (CPs) when both diodes are turned on. Experimental results show that the proposed feeding network has a wide operating bandwidth from 3400 to 3800 MHz with S 11 ≤ −20 dB and isolation level > 20 dB in two states. Moreover, the amplitude imbalance of the output ports is less than 1.3 dB with a 90 • stable phase difference when the feeding network operates in state II. The presented reconfigurable feeding network is suitable for fifth-generation (5G) quadri-polarization antennas.

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