Ultra-Wideband Monostatic Antenna for behind the Wall Detection

Ali, Jawad K.; Yahya, Roshayati; Abdullah, Noorsaliza; Sapuan, Syarfa Zahirah

doi:10.11591/ijece.v7i6.pp2936-2941

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…Hence, the usable bandwidth of the cascaded SPDT switches was limited by the isolation performance. The integration between UWB antennas [20,21] and the proposed UWB switches need to be implemented for the verification of medical application of microwave imaging.…”

Section: Uwb Rf Switch Designmentioning

confidence: 99%

Performance analysis of Ultra-wideband RF switch using discrete PIN diode in SC-79 package for medical application of microwave imaging

Shairi¹,

Sanusi²,

Othman³

et al. 2019

IJECE

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<span>Microwave imaging is an emerging technology in the medical application which have similar functions as X-ray, Magnetic Resonance Imaging (MRI), and Computed Tomography scan (CT scan). In designing a microwave imaging system for medical application, it can use a monostatic radar approach by transmitting a Gaussian pulse (with an ultra-wideband (UWB) frequency). In this system, eight antennas are required with the support of RF switches. Thus, it is important to get the best performance of UWB RF switch in this application. Therefore, this paper presents the performance analysis of four different RF switch topologies (Design 1, 2, 3 and 4) using discrete PIN diode in SC-79 package. The design was based on single pole double throw (SPDT) switch. As result, Design 2 is the best topology after considering the tradeoff between isolation and return loss performances. Based on the three cascaded SPDT switches of Design 2, the insertion loss was less than -2 dB and return loss was more than -10 dB. Meanwhile, the isolation bandwidth (at the minimum isolation of -20 dB) was from 0.5 to 3.7 GHz (with 3.2 GHz bandwidth), hence, it could be used in the UWB frequency for medical application of microwave imaging.</span>

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Section: Uwb Rf Switch Designmentioning

confidence: 99%

Performance analysis of Ultra-wideband RF switch using discrete PIN diode in SC-79 package for medical application of microwave imaging

Shairi¹,

Sanusi²,

Othman³

et al. 2019

IJECE

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“…The term radar, translated into radio detection and ranging [1], [2], means detecting and estimating distance by waves; it is a device emitting and receiving electromagnetic waves, used to detect and locate objects in any space. The capacity of radar is determined according to the technology used, and as it is known, the most exploited technology in the current research work aimed at road safety is the ultra-wide band (UWB) [3], [4] since it allows detection [5] and localization with great precision and in any environment [6].…”

Section: Introductionmentioning

confidence: 99%

Automatic target detection and localization using ultra-wideband radar

Daghouj

Abdellaoui

Fattah

et al. 2022

IJECE

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<span>The pulse ultra-wide band (UWB) radar consists of switching of energy of very short duration in an ultra-broadband emission chain, and the UWB signal emitted is an ultrashort pulse, of the order of nanoseconds, without a carrier. These systems can indicate the presence and distances of a distant object, call a target, and determine its size, shape, speed, and trajectory. In this paper, we present a UWB radar system allowing the detection of the presence of a target and its localization in a road environment based on the principle of correlation of the reflected signal with the reference and the determination of its correlation peak.</span>

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“…Ultra wideband (UWB) frequency bandwidth is assigned from 3.1 to 10.6 GHz and has been commonly applied for communications and sensors, position location and tracking [1], wireless monitoring of transplanted organs [2], monitoring human's activities such as sport and quality of sleep by using wireless body network (WBAN) [3], sensor to detects positioning and tracking of a target by a quad-copter and target [4], detection of human's body behind wall [5], and indoor positioning, radar/medical imaging and target sensor data collection [6][7]. Ultra wideband communication system benefits such as high data rate transfer, less path loss and better immunity to multipath propagation, availability in lowcost transceivers, and low transmit power and low interference, and the requirements in the means of reducing interference due to the coexistence with other narrowband systems have been discussed in [6].…”

Section: Introductionmentioning

confidence: 99%

Design of Wlan and Wimax Band Rejection Utilizing Uwb Planar Antenna Comprising a Slit in the Conductor Planes

Jainal¹,

Mohamed²,

Hamzah³

2019

IIUMEJ

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A compact and low profile ultra wideband planar antenna comprises dual notched-band characteristics for WIMAX and WLAN are presented. UWB communication system is allocated between 3.1 and 10.6GHz, which coexisted with the WLAN and WIMAX frequency bandwidths at 3.3 to 3.6GHz, and 5 to 6GHz, repsectively. The coexistence between multiple frequency bandwidths possibly can cause interference into the communication systems such as data loss and signal disruption. Thus, it is essential to eliminate the coexisted frequency bandwidhs from UWB spectrum. The UWB planar antenna is costructed with a radiator of an elliptical-shaped, and half-ground element which is subjected to suppress the frequency bandwidth for 3.3 to 3.7 and 5 to 6 GHz. Slits are engraved in the elliptical radiator and ground element by etching the conductor elements. Slit shapes are designed in simple and optimized to realize the maximum band notch characteristics. Slit placements are scrutinized and the band notch characteristics are determined. It is considered that the slit in the ground element and the elliptical radiator have stimulated the band notches frequency bandwidths for 3.3 to 3.7 and 5 to 6 GHz, respectively. The UWB planar antennas are compared with the reference antenna and the results are verified. Measured reflection coefficient S11 for band notch peaks at the WLAN and WIMAX frequency bandwidths are about -3.0 and -4.0 dB, respectively. Radiation pattern co-polarizations in the H- and E-plane are in omni- and bi-directional, respectively. Maximum gain G is located in the –z –axis and –x –axis in H- and E-plane in the frequency of interest. Surface currents are distributed in the slit areas. Slits in the elliptical radiator and the ground element are not substantially affect the UWB planar antenna overall performances. ABSTRAK: Antena jalur lebar paling satah yang padat dan bersusuk rendah telah diperkenalkan dan terdiri daripada dua ciri lebar-takik bagi WIMAX dan WLAN. Sistem komunikasi UWB berada pada 3.1 dan 10.6GHz, bertindan dengan jalur lebar frekuensi WLAN dan WIMAX yang berada pada 3.3 hingga 3.6GHz, dan 5 hingga 6GHz, masing-masing. Sifat bertindan antara beberapa jalur lebar frekuensi mungkin akan menyebabkan gangguan pada sistem komunikasi seperti kehilangan data dan gangguan isyarat. Oleh itu, adalah penting bagi membuang jalur lebar frekuensi yang bertindan dengan spektrum UWB. Antena satah UWB telah dibina dengan radiator pemancar berbentuk elips, dan unsur separuh-bumi (lapisan asas) dibawah jalur lebar frekuensi pada 3.3 hingga 3.7 dan 5 hingga 6 GHz. Jalur celahan telah diukir pada radiator elips dan lapisan asas dengan mengukir unsur konduktor. Jalur celahan telah direka mudah dan dioptimumkan bagi mencapai jalur takik maksimum. Kedudukan jalur celahan diteliti dan ciri-diri jalur takik diperolehi. Jalur celahan pada lapisan asas dan radiator elips diperhatikan menyebabkan frekuensi jalur lebar takik sebanyak 3.3 hingga 3.7 dan 5 hingga 6 GHz, masing-masing. Antena satah UWB dibandingkan dengan antena rujukan dan dapatan kajian telah disahkan tidak mempengaruhi keputusan antena planar UWB dengan ketara. Ukuran pantulan pekali S11 yand diukur pada frekuensi jalur lebar takik WLAN and WIMAX adalah -3.0 dan -4.0 dB, masing-masing. Corak pancaran radiasi ko-polar pada satah H- dan E- adalah omni- dan bi-arah, masing-masing. Kekuatan isyarat maksima G berada di paksi –z dan –x pada satah H- dan E- pada frekuensi yang dipilih. Elektrik pada permukaan tersebar dalam kawasan jalur celahan. Celah radiator elips dan lapisan asas tidak mempengaruhi prestasi keseluruhan antena satah UWB.

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Ultra-Wideband Monostatic Antenna for behind the Wall Detection

Cited by 6 publications

References 6 publications

Performance analysis of Ultra-wideband RF switch using discrete PIN diode in SC-79 package for medical application of microwave imaging

Performance analysis of Ultra-wideband RF switch using discrete PIN diode in SC-79 package for medical application of microwave imaging

Automatic target detection and localization using ultra-wideband radar

Design of Wlan and Wimax Band Rejection Utilizing Uwb Planar Antenna Comprising a Slit in the Conductor Planes

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