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Showing 1 to 2 of 2 for “"Air Substrate"”.

  1. On the accuracy of estimating input impedance of probe-fed air-substrate microstrip patch antennas using the theory of characteristic modes

    … are developed to estimate the input impedance of air-substrate, coaxial probe-fed, microstrip patch antennas with arbitrarily shaped patches. Such an antenna with an L-shaped patch is fabricated and experimentally measured, and a case study performed comparing the accuracy of the two methods. The …

    uiuc Repository record for On the accuracy of estimating input impedance of probe-fed air-substrate microstrip patch antennas using the theory of characteristic modes (opens in a new tab)

  2. Community Compostition and Microhabitats of Macroinvertebrates on Sandbars within the Lower Missouri River as a Food Source for Foraging Migratory Shorebirds

    … among sandbars, sampling periods, regions, and substrates. Very few microhabitat variables were significantly different among sandbars. Substrates were among the variables that were different with coarse substrates being more than twice as abundant as fine substrates within sandbars. …

    sdstate Repository record for Community Compostition and Microhabitats of Macroinvertebrates on Sandbars within the Lower Missouri River as a Food Source for Foraging Migratory Shorebirds (opens in a new tab)