Ultra-Wideband Dielectric Resonator Antenna Design Based on Multilayer Form

<table class="fixed-width table-group" id="tab1"><tr><td><table class="table"><colgroup><col style="width:11.86em"/><col style="width:12.30em"/></colgroup><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Technical indicator</td><td class="align_center">Requirement</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Operating frequency band</td><td class="align_center"><span style="width: 89.3659ptpx;"><svg height="8.93365pt" id="M16" style="vertical-align:-0.2977505pt" version="1.1" viewbox="-0.0498162 -8.6359 89.3659 8.93365" width="89.3659pt" 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="M137 343C167 482 260 545 321 574C357 591 397 603 429 609L423 641C382 634 335 622 295 608C189 570 37 457 37 238C37 84 125 -12 242 -12C362 -12 447 89 447 209C447 311 374 393 267 393C247 393 226 386 204 376L137 343ZM227 337C318 337 361 256 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class="align_left">Active standing wave ratio</td><td class="align_center"><span style="width: 28.3196ptpx;"><svg height="11.7782pt" id="M17" style="vertical-align:-3.42938pt" version="1.1" viewbox="-0.0498162 -8.34882 28.3196 11.7782" width="28.3196pt" 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="M516 277C516 378 460 448 376 448C335 448 288 434 240 401C158 345 127 277 107 159C53 -161 38 -221 23 -247L28 -261C43 -260 95 -250 114 -226C122 -216 129 -199 146 -75C152 -29 157 0 164 31C182 9 206 -12 237 -12C267 -12 325 8 376 46C451 102 516 179 516 277ZM432 259C432 134 366 40 259 40C236 40 204 48 171 76L195 203C219 327 253 400 326 400C398 400 432 336 432 259Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.642,0)"><path d="M512 -3V55L134 254V256L512 456V514L75 281V230L512 -3Z"></path></g><g transform="matrix(.013,0,0,-0.013,21.905,0)"><path d="M285 378C315 398 338 416 353 432C373 451 384 474 384 503C384 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<div>Main technical specification of the DRA array.</div>

International Journal of Antennas and Propagation

tab1

Table 1

Table 1: Ultra-Wideband Dielectric Resonator Antenna Design Based on Multilayer Form 