Q-band


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Q-band

A radio frequency band of 36 to 46 GHz.
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References in periodicals archive ?
The distribution of Q-band chromosomal heteromorphisms.
for [C.sub.44][H.sub.28]Cl[N.sub.4]In: C, 69.26; H, 3.70; N, 7.34; Found: C, 69.40, H, 3.78, N, 7.23; IR (KBr, [cm.sup.-1]): 523 (In-N- stretching of metal and ligand coordination); [sup.1]H-NMR (500 MHz, CD[Cl.sub.3], [delta]/ppm): 9.07 (8H, s, pyrrole), 8.38 (4H, d, o-phenyl), 8.10 (4H, d, o'phenyl), 7.786 (12H, s, m-phenyl, p-phenyl); [sup.13]C-NMR (500 MHz, CD[Cl.sub.3], [delta]/ppm): 121.75 ([C.sub.meso]), 127.75 ([C.sub.3,5]), 127.99 ([C.sub.4]), 132.76 ([C.sub.[beta]]), 135.09 ([C.sub.2,6]), 141.96 ([C.sub.1]), 149.46 ([C.sub.[alpha]]); MS (m/z, (relative abundance, %)) for [C.sub.44][H.sub.28]Cl[N.sub.4]In UV-Vis (CH[Cl.sub.3]) ([[lambda].sub.max]/nm): 426 (Soret band), 560 and 599 (Q-bands).
Tamashiro, "Development of 500 W Ka-band helix-TWT and 200 W Q-band helix-TWT for communications applications," Proc.
[43.] Al-Nassar KE, Palmer CG, Conneally PM, Yu PL (1981) The genetic structure of the Kuwaiti population II: The distribution of Q-band chromosomal heteromorphisms.
The changes in the visible spectrum region are more significant for water-soluble Pc 4: the Q-band becomes broader, and its maximum shifts are from 690 nm to 650 nm.
Provider of virtual queuing systems for leisure attractions reported on Thursday that it has signed a five year agreement to install and operate its new Q-band water park ride reservation system for Zoombezi Bay, which is owned and operated by Columbus Zoo and Aquarium.
By using two different dual-mode cavities a Q-band filter with a good selectivity, an elliptical filtering response, and low insertion loss is obtained.
Alexis is a passionate music listener and drummer since the age of six, has recorded two albums with rock bands in Mexico, played at Yamaha's 1989 Band Explosion contest in Japan, and with his most recent band, Q-Band, performed at Ceasar's Palace in Las Vegas.
Two single-ended, low noise amplifiers are designed using this model for Q-band (40 to 44 GHz) and V-band (58 to 65 GHz) applications.
But, manufacturing does not appear to be an issue because 75 percent of the processing is in common with GaAs, and the RF yield of 0.1 ||micro~meter~ T-gate InP MMIC LNAs is high at 50 percent in Q-band. In addition, reliability is not an issue because three temperature life-tests project a meantime-to-failure comparable to GaAs, including 1.5 x |10.sup.7~ hours at 125 |degrees~ C with an activation energy of 1.78 eV.