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  • AN0006 Dielectric Ageing
    of. capacitance is not well defined, but after this time it follows a logarithmic law that can. be expressed in terms of an ageing constant. The ageing constant 'k', or ageing rate, is defined as the percentage loss of capacitance. due to the ageing process of the dielectric that occurs during
  • Dielectric Withstand Testing of Modular and Manufactured Homes (.pdf)
    the. insulation to determine if it is capable of resisting transient power line surges to which the wiring. may become subjected, identify any low resistance areas of the insulating material and any. dielectric breakdown paths of failures that may exist.” Please note that the test is not to be. conducted from
  • Electrical Insulators and Dielectric Materials
    are used especially as supports for electric oven resistors or heating elements. Ceramics used for high frequency insulator applications require a low dielectric constant and a small loss tangent. The careful choice of raw materials saves the surface from having to be vitrified. A vitrified surface would
  • The Anisotropy of Dielectric Constant in TLY-5A Material
    , reader antenna, 900 MHz. Read Abstract Download PDF. Retrodirective Rotman Lens Antenna. RF-60A, Rotman Lens antenna, 8 - 12 GHz. Read Abstract Download PDF. Measuring Dielectric Properties and Surface Resistance of microwave PCBs in the K-band. TLY5A, thermal dependance, DK, loss, tan d, K-band
  • Loss Tangent
    current tan = | IR / IC | . The dielectric quality factor (Q) is equal the inverse of the loss tangent. High Q or low loss tangents are required to reduce insertion losses. Q = (average stored energy per cycle / energy dissipated per cycle)
  • Low Phase Noise VCO Design for PCS Handset Applications
    . closer to the resonant frequency, then higher Q load (QL) will be. Figure 1a shows a Colpitts VCO circuit the way it is usually imple-. achieved. Obviously, low loss resonators, like crystal or dielectric. mented on a PCB. Figure 1b reconfigures the same circuit as a. resonators, allow much closer
  • Low Distortion Tunable RF Components, a Compound Semiconductor Opportunity
    , tunable filters, as well as. device parasitics in order to achieve an improved quality. adjustable “true” time delay phase shifters for smart antenna. factor and capacitance tuning range. systems. An ideal tunable RF element for these applications will. Cfix_1. VS1. V. exhibit very low loss, low
  • Development of Low Inductance High Power Plastic Case Capacitors For The SNS
    weight and volume required for a. dielectric losses are well defined. (It should be noted, system. however, that incomplete drying or contamination of the. liquid impregnant with ionic species could significantly. II. SELF-HEALING. ELECTRODES. increase dielectric losses at low frequencies.) Dielectric