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Proceedings ArticleDOI

Different techniques for creating notches in a planar monopole UWB antenna

01 Dec 2015-pp 1-5
TL;DR: In this paper, a compact printed monopole UWB antenna is presented, followed by various techniques for creating stop bands in order to mitigate interference between co-existing UWB systems.
Abstract: In this paper, a compact printed monopole UWB antenna is presented, followed by various techniques for creating stop bands in order to mitigate interference between co-existing UWB systems. The antenna consists of a two-step beveled radiating patch and a reduced ground plane which accounts for good impedance matching from 3.1 GHz to 10.6 GHz. A wide bandwidth of 8.7 GHz is obtained between 3.5 GHz to 12.2 GHz. A comparative analysis is presented by etching out slots of various shapes near the feed line in order to effectively reject WLAN frequencies (5.15–5.35/5.725–5.8825 GHz). All the analysis for the proposed antenna is done in HFSS 2014.
References
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Journal ArticleDOI
TL;DR: In this article, a spade-shaped ultrawideband (UWB) printed planar monopole antenna with triple band-notched characteristics is proposed by employing a hook-shaped defected ground structure (DGS) in each side of the ground plane, embedding an Omega-shaped slot on the radiating patch as well as adding a semi-octagon-shaped resonant ring on the back side of antenna, triple notched frequency bands are achieved.
Abstract: A novel spade-shaped ultrawideband (UWB) printed planar monopole antenna with triple band-notched characteristics is proposed. By employing a hook-shaped defected ground structure (DGS) in each side of the ground plane, embedding an Omega-shaped slot on the radiating patch as well as adding a semi-octagon-shaped resonant ring on the back side of the antenna, triple notched frequency bands are achieved. The proposed antenna has been successfully simulated, fabricated, and measured. Effects of the key parameters on the frequency ranges of the notched bands are also investigated. The measured impedance bandwidth defined by VS WR < 2 of 10.1 GHz (2.9-13 GHz), with the triple notched bands of 3.3-3.9, 5.2-5.35, and 5.8-6.0 GHz, is obtained. Measured group delay and transmission characteristics indicate that the antenna has good transient response. Furthermore, the proposed antenna shows the merit of insensitivity to both finite ground size and fabrication tolerances.

168 citations


"Different techniques for creating n..." refers background in this paper

  • ...Band rejection of UWB antennas can be achieved by incorporating small strip bar [7-9], an openloop resonator [10], U-shaped slots [11], etching out a Ωshaped slot [12] and a pentagonal radiating patch with two bent slots [13]....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a planar monopole antenna with standard band-notched characteristic suitable for ultrawideband (UWB) applications is presented, consisting of a square slot patch with a vertical coupling strip, only occupying a small size of 15 (L) × 15 (W) × 1.6 (H) mm3.
Abstract: A compact planar monopole antenna with standard band-notched characteristic suitable for ultrawideband (UWB) applications is presented. This microstrip-fed antenna, consisting of a square slot patch with a vertical coupling strip, only occupies a small size of 15 (L) × 15 (W) × 1.6 (H) mm3. By properly designing the strip placed at the center of the patch, good frequency rejection performance of the antenna with a wide operating band from 3.05 to 11.15 GHz can be obtained. Compared to other designs, the antenna has a quite simple structure to make the band-notched property to reduce the effect caused by the frequency interference. Furthermore, fairly good omnidirectional radiation patterns and transmission responses both indicate that the proposed antenna is well suited to be integrated within various portable devices for UWB operation.

141 citations


"Different techniques for creating n..." refers background in this paper

  • ...Band rejection of UWB antennas can be achieved by incorporating small strip bar [7-9], an openloop resonator [10], U-shaped slots [11], etching out a Ωshaped slot [12] and a pentagonal radiating patch with two bent slots [13]....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a simple, low-cost, and compact printed dual-band fork-shaped monopole antenna for Bluetooth and ultrawideband (UWB) applications is proposed.
Abstract: A simple, low-cost, and compact printed dual-band fork-shaped monopole antenna for Bluetooth and ultrawideband (UWB) applications is proposed. Dual-band operation covering 2.4-2.484 GHz (Bluetooth) and 3.1-10.6 GHz (UWB) frequency bands are obtained by using a fork-shaped radiating patch and a rectangular ground patch. The proposed antenna is fed by a 50-Ω microstrip line and fabricated on a low-cost FR4 substrate having dimensions 42 (Lsub) × 24 (Wsub) × 1.6 (H) mm3. The antenna structure is fabricated and tested. Measured S11 is ≤ -10 dB over 2.3-2.5 and 3.1-12 GHz. The antenna shows acceptable gain flatness with nearly omnidirectional radiation patterns over both Bluetooth and UWB bands.

141 citations


"Different techniques for creating n..." refers methods in this paper

  • ...Moreover, various methods have been employed for broadening the operating bandwidth of the printed monopole antenna [4-6]....

    [...]

Journal ArticleDOI
TL;DR: In this article, the design and analysis of an ultra-wideband (UWB) aperture antenna with dual band-notched characteristics are presented, which consists of a circular exciting stub on the front side and a U-shaped aperture on the back ground plane.
Abstract: The design and analysis of an ultra-wideband (UWB) aperture antenna with dual band-notched characteristics are presented. The antenna consists of a circular exciting stub on the front side and a U-shaped aperture on the back ground plane. By inserting a slot and a parasitic strip to the antenna, dual notched frequency bands are achieved. A conceptual circuit model, which is based on the measured impedance of the proposed antenna, is also shown to investigate the dual band-notched characteristics. The measured impedance bandwidth defined by VSWR<2 of 9.0 GHz (2.2-11.2 GHz), with the dual bands of 3.25-4.25 and 5.0-6.05 GHz notched, is obtained.

116 citations


"Different techniques for creating n..." refers background in this paper

  • ...Band rejection of UWB antennas can be achieved by incorporating small strip bar [7-9], an openloop resonator [10], U-shaped slots [11], etching out a Ωshaped slot [12] and a pentagonal radiating patch with two bent slots [13]....

    [...]

Journal ArticleDOI
TL;DR: In this article, a planar antenna for ultrawide-band (UWB) applications is proposed, which consists of a wideband tapered-slot feeding structure, curved radiators and a parasitic element.
Abstract: In this paper a planar antenna is studied for ultrawide-band (UWB) applications. This antenna consists of a wide-band tapered-slot feeding structure, curved radiators and a parasitic element. It is a modification of the conventional dual exponential tapered slot antenna and can be viewed as a printed dipole antenna with tapered slot feed. The design guideline is introduced, and the antenna parameters including return loss, radiation patterns and gain are investigated. To demonstrate the applicability of the proposed antenna to UWB applications, the transfer functions of a transmitting-receiving system with a pair of identical antennas are measured. Transient waveforms as the transmitting-receiving system being excited by a simulated pulse are discussed at the end of this paper.

92 citations


"Different techniques for creating n..." refers methods in this paper

  • ...Moreover, various methods have been employed for broadening the operating bandwidth of the printed monopole antenna [4-6]....

    [...]