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A novel broadband and miniaturized UHF RFID tag antenna with T-matching network is presented in this paper. The T-matching network is used for bandwidth enhancement. Its miniaturization characteristic is realized by using a folded radiating element. The bandwidth (S11<−20dB) of the proposed antenna is 220MHz (800MHz ∼1.02GHz) and the whole global UHF RFID frequency band has been covered. By using...
A bandwidth enhanced method of a low-profile substrate integrated waveguide (SIW) cavity-backed slot antenna is presented in this paper. Bandwidth enhancement is achieved by simultaneously exciting two hybrid modes in the SIW-backed cavity and merging them within the required frequency range. These two hybrid modes, whose dominant fields are located in different half parts of the SIW cavity, are two...
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