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A new passive radio-frequency identification (RFID) tag antenna for the ultrahigh frequency band is proposed. It consists of a modified inductive feed and a radiating slotted copper trace (SCT). A ground plane is used in the design to make the tag antenna platform-tolerant. The radiating SCT is investigated first, and its return loss, antenna efficiency and radiation pattern characteristics are studied...
A dual-function platform-tolerant radio-frequency identification (RFID) tag antenna is proposed in this paper. The patch functions simultaneously as an antenna and a radiating element of the RFID tag. The return loss, and parametric analysis of the proposed configuration are investigated.
A new annular slot antenna (ASA) is proposed in this paper. The slot is perturbed to match the impedance of the fundamental and first-order modes of the annular slot. Results simulated using Ansoft HFSS are presented, which show that this new antenna can provide a dualband operation. The proposed ASA can be applied to IEEE802.11 WLAN systems.
A passive radio-frequency identification (RFID) tag antenna for UHF applications is proposed. An inductively coupled feed for the tag, employed previously in an earlier design, is modified to realize a new RFID tag antenna. A ground plane is used in the design to make the tag antenna platform-tolerant. The read range and percentage power transfer of the tag antenna are studied.
A dielectric resonator antenna (DRA) is placed on top of a slotted cavity to form a hybrid antenna. An L-probe is placed inside the cavity to feed the zonal slot, cut onto the cavity, and the DRA simultaneously. Ansoft HFSS was used to analyze the proposed hybrid antenna, which provides a dual-band operation. The proposed antenna can be applied to IEEE802.11 WLAN systems.
In this paper, a dualband antenna that consists of two radiating slots is studied. The slots are cut onto an L-probe-fed hollow rectangular conducting cavity, which is covered by a protective dielectric layer. Dualband operation can be obtained by exciting the two resonant modes of the two slots. It is found that the frequencies of the two resonant modes can be adjusted independently, which greatly...
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