Analysis of the small slot‐loaded elliptical patch antenna with a band‐notched for UWB applications

Abstract

A small slot‐loaded elliptical antenna with a band‐notched for ultra wide‐band (UWB) applications is presented in this article. Printed on a dielectric substrate with relative permittivity of 4.4, thickness of 1 mm, and fed by a 50 Ω microstrip line, the proposed antenna satisfies the UWB bandwidth requirement of 3.1–10.6 GHz. A slot is used to reject the frequency band (5.15–5.825 GHz) limited by IEEE802.11a. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 973–976, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24247

Double-Elliptical Shaped Miniaturized Micro Strip Patch Antenna for Ultra-Wide Band Applications

“…12 shows the curve for Peak gain in dB for DEMPA with a 2 = 7.5 mm obtained from simulations. The maximum and minimum values of peak gain were found to be 5.2 dB and 1.7 dB at The proposed DEMPAs with a 2 = 8.5 mm, 8.0 mm, and 7.5 mm were found to have similar radiation properties as that of the reference EMPA [17] and cover the entire UWB even if their effective patch areas are less. For DEMPA with a 2 = 7.5 mm, the extent of miniaturization is the maximum with the percentage reduction in the effective patch area becoming 8.33%.…”

“…For the present work, an EMPA for UWB communications with lengths of semi-major axis and semiminor axis as 9.0 mm and 7.0 mm respectively was chosen as a reference [17]. Its major axis was arranged horizontally.…”

“…The shape of antenna with an elliptical patch inserted within an elliptical slot was also proposed [16]. A slot was introduced along the major axis of an elliptical patch [17]. Semi-elliptical patch with a semi-circular ring slot was suggested for MSPA [18].…”

An integrated UWB and bluetooth antenna with dual WLAN band-notched

“…The conventional methods to achieve a notched band are put parasitic elements near the printed monopole [2,3]. A slot also can be used to reject the frequency band in UWB antenna [4]. These antennas typically use one resonance to abandon the band from 5.2 GHz to 5.8 GHz [1][2][3][4][5][6][7][8]，however，frequencies between these two are useful sometimes, where dual bandnotched antenna design is significant.…”

Design of a novel planar ultrawideband antenna with 3.5 and 5.5 GHz dual band‐notched characteristics

“…However, within the designed UWB frequency band, there are wireless local area network (WLAN) operating bands of 5150–5825 MHz and worldwide interoperability for microwave access (WiMAX) 3400–3690 MHz which may cause interference with UWB operation. To overcome this problem, various UWB antennas with band‐notched function have been developed not only to mitigate the potential interference but also to remove the requirement of extra band‐stop filters in the UWB systems [7–10]. Some techniques have been proposed for achieving the notched band by embedding a thin slot in a patch antenna [7], using parasitic patches [8], employing a parasitic strip in a slot antenna [9] or etching a thin slot in the ground plane [10].…”