A Beveled and Slot-Loaded Planar Bow-Tie Antenna for Uwb Application

Liu, Jing; Zhao, Deshuang; Wang, Bing‐Zhong

doi:10.2528/pierm08031901

Cited by 29 publications

(17 citation statements)

References 22 publications

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“…Afterwards, considering the parallel configuration, we have compared measurement and simulation results for both coefficients S 11 and S 21 in the frequency band from 0.1 to 4 GHz in Figures 17(a) and 17(b), respectively. In Figure 17(a), the peaks and hollows of the measurements agree satisfactorily with the simulations; the measurement variations versus frequency appear smoother.…”

Section: Measurementsmentioning

confidence: 99%

“…However, a low bandwidth and a low gain are the main shortcomings for such a planar structure. The microstrip antenna has now reached maturity, and many techniques have been suggested for achieving a high bandwidth such as using more complex shapes, parasitic elements, multilayer configurations and the tuning of the feed line [11][12][13][14]. In this paper, an original printed rectangular slot antenna fed by a 50 Ω CPW (coplanar waveguide) transmission line tuned by a E-shaped patch is presented [13,14].…”

Section: Introductionmentioning

confidence: 99%

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A Compact Coplanar Broadband Rectangular Slot Antenna With E-Shaped Feeding Structure for GPR Applications

Sagnard¹

2012

PIER B

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Abstract-A coplanar rectangular slot antenna operating in the very wide frequency band from 0.27 to 3.1 GHz (bandwidth over 166%) has been designed for GPR applications. The antenna, which is supposed to be positioned on the soil surface, appears particularly compact (34 × 29 cm 2 ) and exhibits a low cross-polarization in the E-plane. 3D FDTD simulations have allowed to make a detailed parametric study associated with the antenna dimensional parameters in order to optimize the radiating performances. The slot antenna has also been studied with a shield to be further integrated in a bistatic subsurface radar positioned on the soil surface. Simulated results of the link in the presence of a homogeneous soil then including buried objects met in civil engineering structures are presented and discussed. First experimental results on a sandy soil have been compared to numerical ones.

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Section: Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Compact Coplanar Broadband Rectangular Slot Antenna With E-Shaped Feeding Structure for GPR Applications

Sagnard¹

2012

PIER B

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“…The geometry of proposed UWB configuration is presented in Figure 2 [25]. The proposed antenna is printed on FR-4 substrate with dielectric permittivity 3.34 and thickness h=0.794mm.…”

Section: Antenna Structurementioning

confidence: 99%

Mikrodalgalarla Meme Kanseri Tespitinde Kireçtaşının Etkisi

Aydın

2017

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Breast cancer is the most widespread type of cancer among women around the world. Initial stage cancer detection is the most important in terms of reproducing of the tumors in an uncontrolled way and spreading to the other organs. Microwave imaging method is relatively effective method compared to other tools which are X-ray mammography, Magnetic resonance imaging (MRI) and ultrasound. They have some shortfalls such as X-ray mammography suffers from high missed-detection and false-detection rates. Also, it is ionizing and uncomfortable compression of the breast. Because of this, microwave imaging method has the potential to overcome the some shortfalls of the X-ray mammography, MRI, and other existing known methods. In addition, Ultra-wide band (UWB) radar technique is a quite attractive technology for many applications, especially for early breast cancer detection. In this paper, both an UWB bow-tie antenna with enhanced bandwidth and a 3D breast model which has varied permittivity and conductivity is designed in CST software simulation tool to solve electromagnetic field values. Return loss and radiation pattern characteristics which are significant antenna parameters are simulated and obtained whether the antenna possess an efficient characteristic or not. Tumor cannot be detected by existing methods since there is limestone layer, which is occurred by milk ducts, surrounding of tumor. Therefore, limestone's effect on the tumor is studied in order to investigate the radiation from the skin with reference to whether there is limestone or not surrounding of tumor. Also, electric field and magnetic field values over the breast tissue with tumor or tumor which is surrounded by limestone, or without tumor, and limestone instead of tumor are evaluated. Limestone's effect is clearly observed when there is limestone surrounding of tumor or not. So, limestone is a crucial factor for breast cancer detection methods. sahiptirler. Ayrıca, radyasyon yayıcı olması ve memeyi sıkıştırması rahatsızlık vericidir. Bu nedenle, mikrodalga görüntüleme yöntemi; X-ışını mamografi, MRG ve bilinen diğer mevcut yöntemlerin bazı eksikliklerinin üstesinden gelme potansiyeline sahiptir. Buna ek olarak, Ultra geniş bant (UWB) radar tekniği birçok uygulamada, özellikle erken meme kanseri tespiti için oldukça ilgi çekici bir teknolojidir. Bu makalede, gelişmiş/ultra bant genişliğine (UWB) sahip bir UWB bow-tie anteni ve çeşitli geçirgenliğe ve iletkenliğe sahip olan bir 3-boyutlu meme modeli, CST yazılım simülasyon programında, elektromanyetik alan değerlerini çözmek üzere tasarlanmıştır. Önemli anten parametreleri olan geri dönüş kaybı ve ışıma örüntü özellikleri simüle edilir ve antenin etkin bir karakteristik olup olmadığı elde edilir. Mevcut olan yöntemlerle, tümör etrafı süt kanallarından dolayı meydana gelen kireçtaşı tabakasından dolayı tespit edilememektedir. Bu nedenle, kireçtaşının tümör üzerindeki etkisi, tümörün çevresinde kireç taşı olup olmadığına bakılarak derideki radyasyonun araştırılması için incelenir. Ayrıca, meme...

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“…Several slot antennas for UWB application have been reported so far [1][2][3][4][5][6][7]. To avoid the interference between the UWB system and the wireless local area network (WLAN) system with 5.…”

Section: Introductionmentioning

confidence: 99%

Study of a Novel Wideband Circular Slot Antenna Having Frequency Band-Notched Function

Gao¹,

Li²,

Niu³

et al. 2009

PIER

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Abstract-In this paper, the design, simulation, and fabrication of a novel printed circular slot antenna with a band-notched function suitable for UWB application is presented and investigated. The band-notched characteristic is achieved and adjusted by inserting L-shaped branches into the ground plane. Experimental results show that the proposed antenna meets the requirement of wide working bandwidth of 3.1-10.6 GHz with return loss < −10 dB, while avoiding the interference with the 5-GHz WLAN band. The study of transfer function (amplitude of S 21 /group delay) and time domain characteristic (fidelity/power spectrum density (PSD)) indicate a band-notched function of the antenna. The proposed antenna has a compact size, good radiation characteristics, ultra wide band-width, and good time-domain behaviors to satisfy the requirement of the current wireless communication systems.

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A Beveled and Slot-Loaded Planar Bow-Tie Antenna for Uwb Application

Cited by 29 publications

References 22 publications

A Compact Coplanar Broadband Rectangular Slot Antenna With E-Shaped Feeding Structure for GPR Applications

A Compact Coplanar Broadband Rectangular Slot Antenna With E-Shaped Feeding Structure for GPR Applications

Mikrodalgalarla Meme Kanseri Tespitinde Kireçtaşının Etkisi

Study of a Novel Wideband Circular Slot Antenna Having Frequency Band-Notched Function

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