Broadband pattern diversity annular slot antenna

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In [12], dual-band circularly polarized annular slot antenna is obtained by employing two square slots, a bended microstrip line and a cavity back. As shown in Figure 2(a), antenna 1 is a fold annular slot antenna , and the asymmetric of the slot width will lead to two split orthogonal degenerate modes around 2.

A compact asymmetric coplanar strip (ACS)-fed ultra-wideband (UWB) antenna for diversity applications is presented. The proposed antenna is composed of two circular radiating elements and orthogonal ACS-fed mechanisms to achieve diversity performance across the UWB from 2.66 to 11.08 GHz, and occupies a very compact size of 28.5 × 28.5 mm2. By introducing a rectangular stub diagonally between ... Dual-Port Dual-Wideband Annular Slot Antenna with Stable ... annular slot antenna proposed in [23] provides dual-band feature with two concentric slot-rings and stable radiation pattern in both bands, but the dimensions of the cavity were too large, hence resulting in a bulky structure unsuitable for array design. In this paper, a compact dual-feed dual-band slot antenna is described. It has been ... Dual Port Ultra Wideband Antennas for Cognitive Radio and ... A Broadband Pattern Diversity Annular Slot Antenna Michele Gallo , Eva Antonino-Daviu , Miguel Ferrando-Bataller , Michele Bozzetti , Jose-Maria Molina-Garcia-Pardo , Leandro Juan-Llacer IEEE Transactions on Antennas and Propagation Design and Development of an Annular Slot Antenna (ASA ... controlled radiation patterns. The Annular Slot Antenna (ASA) proposed in this paper operates at 5.8 GHz and the use of pin diodes along the slot circumference allows the radiation pattern to be directed in a number of different directions while the operation frequency remains constant. It is fabricated on

A Broadband Pattern Diversity Annular Slot Antenna

Dual-band-notched antenna for UWB MIMO applications ... Two antenna elements are placed side by side and fed with matched microstrip lines on a substrate with an area of 35 × 30 mm 2. Notched characteristics at WiMAX (3.4–3.6 GHz) and WLAN (5.725–5.825 GHz) have been achieved using complementary split ring resonator (SRR) slots etched in both the antenna elements.

diversity UWB and Bluetooth antenna for MIMO applications. At last, a ...... Juan-Llacer, “A Broadband Pattern Diversity Annular Slot Antenna,”. IEEE Trans.

The novel annular-ring slot antenna has been designed to [6] BEHDAD N., SARABANDI K. : ‘Wideband double-element implement a pattern/polarisation receiving diversity scheme ring slot antenna’, IEE Electron. Lett., 2004, 40, (7), in body-centric communication systems.

Dual Port Ultra Wideband Antennas for Cognitive Radio and ...

The Annular Slot Antenna (ASA) is an interesting simple, low cost, easy to manufacture planar microstrip printed antenna with a compact shape factor and a relatively wide frequency bandwidth (in ... Design of microstrip-fed printed UWB diversity antenna ... The antenna in shows the pattern diversity and polarisation diversity and covers the lower UWB of 3.1–5.15 GHz. The isolation for this diversity antenna is better than 26 dB. In , antenna system for pattern diversity is proposed having dimension of 80 mm × 80 mm. The antenna system has impedance bandwidth from 3 GHz to 12 GHz. DESIGN OF RECONFIGURABLE ANNULAR SLOT ANTENNA (ASA) FOR ... Figure 7: Radiation patterns of annular slots when n=0 and W s<< ... The annular slot antenna consists of a circular slot on a square, metal ground plane that is fed by a microstrip line, designed on the bottom of the Duroid substrate. The Dual-band-notched antenna for UWB MIMO applications ...