Frequency Interpolation of LOFAR Embedded Element Patterns Using Spherical Wave Expansion

<div>The condition number of the matrix <svg height="8.48346pt" id="M174" style="vertical-align:-0.0498209pt" version="1.1" viewbox="-0.0498162 -8.43364 7.32864 8.48346" width="7.32864pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M524 497C519 556 514 633 513 650H40V615C113 608 122 601 122 511V142C122 48 113 42 40 35V0H351V35C264 42 256 48 256 142V300H338C427 300 437 292 448 224H484V423H448C437 359 427 350 338 350H256V571C256 604 260 606 295 606H345C401 606 428 599 449 577C466 559 479 529 489 491L524 497Z"></path></g></svg> as a function of the number of columns. The horizontal black line denotes a condition number of 10.</div>

International Journal of Antennas and Propagation

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Figure 3

Figure 3: Frequency Interpolation of LOFAR Embedded Element Patterns Using Spherical Wave Expansion 