Agilent 1963-12 free download

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HEWLETT-PACKARD JOURNAL T E C H N I C A L I N F O R M A T I O N F R O M T H E - d p - L A B O R A T O R I E S Vol 15. No 4 BLISHED BY THE HEWLETT-PACKARD COMPANY, 1501 PAGE MILL ROAD, PALO ALTO, CALIFORNIA DECEMBER, 1963 A New Series of Microwave Sweep Oscillators with Flexible Modulation and Leveling IN microwave work one of the valuable and quency range from 1 to 40 gigacycles (kilomega- inherently appealing test instruments is the mi cycles). A major factor in their convenience crowave sweep generator. Such generators can derives from their use of a p-i-n diode type modu greatly simplify difficult microwave investigations, lator in the output circuits ' of those generators as discussed in several past articles1 on sweep- covering the 1 to 12.4 Gc region. This type of frequency techniques. modulator permits the generators to be modu A new series of microwave sweep oscillators lated or leveled with virtually no reaction on the has now been designed which incorporates a num generated carrier frequency, since the voltages ber of new conveniences. These oscillators, espe and currents in the oscillator tube remain con cially when used with stant. As a result, more accurate frequency speci SEE ALSO: some of the advanced fications are possible in all operating functions. High resolution microwave spectrum examination, p. 8. components recently 1 P. D. Lacy and D. E. Wheeler, "A New 8-12 kMc Voltage-Tuned Sweep Oscil lator for Faster Microwave Evaluations", Hewlett-Packard Journal Vol. 8, No. 6, developed in the -hp- Feb., 1957. P D Lacy and D. E. Wheeler, "Permanent Record and Oscilloscope Techniques laboratories-, make microwave sweep methods