Wireless technology is one of the main areas of research in the world of communication and a study of communication system is incomplete without understanding the operation of an antenna. Recent trends of wireless mobile communication technology are towards the miniaturization and demand for more robust and compact designs. This paper proposed a low cost, efficient, high gain and wideband Micro...

The applicabilty of superconductors to antennas is examined. Potential implementations that are examined are superdirective arrays; electrically small antennas; tuning and matching of these two; high-gain millimeter-wavelength arrays; and kinetic inductance slow wave structures for array phasers and traveling wave array feeds. Superdirective arrays and small antennas will not benefit directly, ...

Generally, passive RFID tags consist of an integrated circuit (RFID chip) and an antenna. Because the passive tags are batteryless, the power transfer between the RFID's chip and the antenna is an important factor in the design. The increasing of the available power at the tag will increase the read range of the tag which is a key factor in RFID tags. The passive RFID tag antennas cannot be tak...

We report a novel broadband slot-spiral antenna that can be integrated with high-electron-mobility transistor (HEMT) terahertz (THz) detectors. The effect of various parameters on the transmission efficiency structure at 150–450 GHz is investigated systematically. performances and spiral both HEMTs are compared. results show has better miniaturization capability than structure. A formula for re...

The paper presents research results in the field of small antennas obtained at the Department of Wireless Communications, Faculty of Electrical Engineering and Computing, University of Zagreb. A study comparing the application of several miniaturization techniques on a shorted patch antenna is presented. Single and dual band shorted patch antennas with notches and/or slot are introduced. A PIFA...

In present wireless communication devices are getting smaller in size but the operation is held by such devices are needed much greater bandwidth. Microstrip antennas are smaller in size but having drawback of low bandwidth and low efficiency. Literature shows that the leading work on MSA is focused on designing compact sized broadband MSA. Last few years many miniaturization and bandwidth enha...

In recent years, with the rapid development of integrated circuits, filtering antenna (FA) circuit substrate waveguide (SIW) has attracted widespread attention in wireless communications. Numerous structures have been proposed to improve performance SIW FA. Hence, this paper presents and miniaturization trend FA, briefly introduces structure historical terms mode, multi-mode cavities incomplete...