A compact design for dual- and wide-band cavity-backed slot antenna is presented in this letter. The slot antenna is fed by two microstrip lines on the top of the substrate for 900- and 1800-MHz bands, respectively. With the use of a U-type slot and a ridged slot backed by one rectangular cavity, a compact design is realized for a dual- and wide-band slot antenna. A prototype is fabricated and tested in an anechoic chamber. The measured 10-dB return loss bandwidth is 28% for 900-MHz band and 31% for 1800-MHz band. The measured gain is 5.0 dBi at 1000 MHz, 5.5 dBi at 1800 MHz.
No takes yet. Share an insight, caveat, or question.
Liu et al. (2006) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: