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In the paper, the design of MIMO antennas with three ports is proposed and investigated. The three monopole antennas are fed by 50-ohm mini coaxial cable lines. Three monopoles are located as the right, the middle and the left side of the top edge of the design. Two L-shaped strips protruded from the ground and four inverted L-shaped strips extended from the ground is introduced to the design for...
In this paper, a folded C-shaped monopole for WLAN/WiMAX USB dongle is proposed. The antenna is fabricated on FR4 substrate; the overall dimensions are 35 mm × 10 mm × 1.6 mm. The antenna portion is occupied by 10 mm × 10 mm, and the size of system ground is 25 mm × 10 mm. The C-shaped monopole consists of the left arm with longest length and the left arm. The left arm of the folded C-shaped generates...
This paper presents the analysis of CPW-fed trapezoidal monopole antenna added with parasitic elements and slots. From previous work, the proposed antenna altered by adding parasitic elements to enhance the operation bandwidth and achieved frequencies from 3.2GHz to 11.5GHz which covered Ultra Wide Bandwidth. This antenna is fabricated on FR4 for real measurement. Next experiment continues with slots...
In this paper, a novel compact high isolation Wireless local area network (WLAN) multiple-input-multiple-output (MIMO) antenna based on composite right-/left-handed (CRLH) is proposed. The antenna performance and field distribution are studied through simulation. The results prove that this new method can realize high isolation between antenna elements with nearly no influence on its radiation performance...
In this paper, a compact omnidirectional circularly polarized (CP) cylindrical dielectric resonator antenna (DRA) is presented. The DRA is excited in its TM01δ mode by a probe located at the center, giving linearly polarized (LP) omnidirectional radiation patterns. Four interleaved strips serving as a wave polarizer are placed on the top of the DRA. By tuning the strips, the LP fields can be changed...
A design of MIMO antennas using two monopole structures adding a neutral line connected to ground plane for achieving better isolation is proposed and examined. The antenna uses curved C-shaped arm to resonance the bands of IEEE802.11b/g/n; another arm extended on the feed achieves the bands of IEEE 802.11a application. The overall size of the design is 45×25×1.6mm3; the occupied area of the antenna...
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