news digest ♦ RF Electronics
computing and communications. Experience shows that today’s hero experiment can become tomorrow’s commercial technology, and often does.”
The papers in which this work has been described in detail are:
1) “Lasing from individual GaAs-AlGaAs core-shell nanowires up to room temperature,” by B. Mayer et al, Nature Communications, 5th Dec. 2013. DOI: 10.1038/ ncomms3931
2) “High mobility one- and two-dimensional electron systems in nanowire-based quantum heterostructures.” by S. Funk et al, Nano Letters, 25th Nov. 2013. DOI:
dx.doi.org/10.1021/nl403561w
3) “Enhanced luminescence properties of InAs-InAsP core-shell nanowires,” by J. Treu et al, Nano Letters, 25th Nov. 2013. DOI:
dx.doi.org/10.1021/nl403341x
This research was supported in part by the German Excellence Initiative through the TUM Institute for Advanced Study and the Excellence Cluster Nanosystems Initiative Munich (NIM); by the German Research Foundation (DFG) through Collaborative Research Centre SFB 631; by the European Union through a Marie Curie European Reintegration Grant, the QUROPE project SOLID, and the EU-MC network INDEX; by a CINECA award under the ISCRA initiative; and by a grant from Generalitat Valenciana.
TriQuint’s GaAs and GaN devices made for defence applications
The company’s latest gallium arsenide (GaAs) and gallium nitride (GaN) improve efficiency and reduce part counts
TriQuint Semiconductor is releasing new phase shifters, high-power limiters and GaN MMIC amplifiers that can improve system performance, increase efficiency and reduce part counts in wide-ranging defence and commercial applications. The firm’s three new high-power limiters handle up to 100W and protect sensitive circuits from electrical overload. Their low flat leakage shields low noise amplifiers while low insertion loss maximises efficiency with reduced noise. The devices are ideal for receive chain (Rx) protection in commercial and defence radars.
TriQuint’s two new phase shifters cover 6 - 18 GHz, including X- and Ku-bands. They deliver wider frequency coverage than competing solutions for reduced part counts. Their 6-bit digital logic assures smooth, continuously variable time delay functionality. They are packaged for easy assembly in radar, electronic warfare and satellite communications applications.
The new GaN amplifiers cover a wide range of 112
www.compoundsemiconductor.net January / February 2014
applications with greater output power at superior efficiency, which enables smaller systems and reduced part counts. TriQuint’s new die-level amplifier delivers superior broadband power and efficiency; its two new packaged 50W amplifiers support key radar (9 - 10 GHz) and satellite communications (7. 9 - 8.4 GHz) frequencies.
TriQuint’s Spatium high power amplifiers deliver a highly reliable, efficient alternative to travelling wave tube wave amplifiers for commercial and defence communications, radar and EW.
Spatium dramatically improves broadband RF power and efficiency through patented coaxial spatial combining techniques using GaAs or GaN MMIC amplifiers. Spatium supports the need for RF power at high efficiency from hundreds to thousands of watts.
RF Electronics IQE provides trading update
Revenues for 2013 is expected to be at least £126 million, an increase of over 43 percent compared with 2012
IQE has provided a trading update for the year ended 31st December 2013.
Trading in H2 2013 is expected to show sequential growth, despite weak guidance for Q4 2013 and Q1 2014 from a number of IQE’s wireless customers, and a significantly strengthening sterling/dollar exchange rate.
As a result, revenue for full year 2013 is expected to be at least £126 million (2012: £88 million), representing a new record and an increase of over 43 percent compared with the prior year.
Strong sales growth and improved operational efficiencies are expected to deliver a record EBITDA of at least £24.5 million (2012: £16.4 million).
Adjusted fully diluted EPS is therefore expected to be approximately 2p (2012: 1.51p), an increase of over 32 percent compared with 2012.
The Group’s conversion of operating profit into cash is expected to reduce net debt to below £35 million at year end (June 2013: £37.7 million), even after the payment of approximately £14 million during 2013 in deferred consideration relating to prior acquisitions. The amount of deferred consideration payable in 2014 is expected to
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132 |
Page 133 |
Page 134 |
Page 135 |
Page 136 |
Page 137 |
Page 138 |
Page 139 |
Page 140 |
Page 141 |
Page 142 |
Page 143 |
Page 144 |
Page 145 |
Page 146 |
Page 147 |
Page 148 |
Page 149 |
Page 150 |
Page 151 |
Page 152 |
Page 153 |
Page 154 |
Page 155 |
Page 156 |
Page 157 |
Page 158 |
Page 159 |
Page 160 |
Page 161 |
Page 162 |
Page 163 |
Page 164 |
Page 165 |
Page 166 |
Page 167 |
Page 168 |
Page 169