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Simulated and measured radiation patterns (H-plane and E-plane) for the proposed antenna at 4 GHz: a simulation; b measurement
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This paper presents a new design of an elliptical disc monopole antenna for ultra wideband (UWB) applications. The antenna is fed by a 50 Ω microstrip line and printed on a dielectric FR4 substrate of permittivity ε
r
= 4.7 and height h = 1.6 mm. The optimization on the planar elliptical disc monopole has been presented to accomplish an ultra wide...
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Citations
... The substrate lies between patch and ground plane. Literature study showed that microstrip antenna's type, shape, design analytics, and feeding procedures are the commonly accepted methods to improve the antenna's characteristics and performances [9][10][11][12][13][14][15]. These attributes help to improve the antenna parameters including return loss, gain, directivity, and bandwidth. ...
In this paper, using in-depth simulations and measurements, a simple and compact design is engineered for making a circular ring microstrip patch antenna radiating element which is suitable for different ultra wide band (UWB) applications. This design approach is different because it has not utilized the usual method of using a set of electromagnetic equations and calculations to make the radiating antenna. Measurements and simulations were performed on Microwave CST. Using this measurement engineering approach, novelty of proposed antenna structure is obtained by making the required changes in the ground plane. The measurements showed that truncating the ground plane by a square shape structure of 2.5 mm by 2.5 mm size at the feed point was practically significant to provide an impedance bandwidth \(\left( {S_{11} < - 10\;{\text{dB}}} \right)\) ranging from 2.75 to 32.035 GHz with a VSWR which is less than 2. For this entire bandwidth the directivity has shown a variation from 0.8 to 7.9 dBi. The compact size (33 mm × 28 mm × 1.57 mm), low design complexity, very high bandwidth, good directivity and satisfying VSWR has made this antenna unique among all previously presented UWB antennas.
... In the literature, various antenna models are designed for UWB applications [2,3], such as the elliptical shape monopole antenna [4], tapered slot antenna [5], reconfigurable antenna [6], and circular patch antenna [7] with elliptical slot on ground plane, were designed for UWB application. In [4], a half modified circular shape ground plane was considered, and a radiating efficiency of more than 90% was obtained. ...
... In the literature, various antenna models are designed for UWB applications [2,3], such as the elliptical shape monopole antenna [4], tapered slot antenna [5], reconfigurable antenna [6], and circular patch antenna [7] with elliptical slot on ground plane, were designed for UWB application. In [4], a half modified circular shape ground plane was considered, and a radiating efficiency of more than 90% was obtained. Similarly, in [5] rectangular slits at the edges were designed to produce wide bandwidth of 8.45 GHz. ...
An elliptical shape patch (ESP) antenna with inverted U-shaped slots is proposed and presented in this paper for on-body communications. A coplanar waveguide (CPW) feed is used as ground to produce impedance matching, and inverted U-shaped slots are used to produce the ultrawideband (UWB). The proposed ESP antenna model covers UWB characteristics in free space, and it is observed at 3 to 10.7 GHz. When it is implanted on a flat tissue model of human body, the bandwidth is 2.2 to 10.8 GHz. The SAR values of 1.26 W/kg and 1.58 W/kg are observed on-body at 4.9 GHz and 7.3 GHz operating frequencies, respectively. The results with respect to the radiation pattern, gain, reflection coefficient, and surface current distribution are also presented.
... In figure [4] the radiation pattern of the handset sleeve dipole is given. The Capacitive loading, Inductive loading are used in this feeding line meandered technology. ...
... If we want to connect it to Wi-Fi there has to be antenna in the laptop system. Simple patch element we can see how much area it covers in the above figure and simultaneously in the dual band back-to-back E-shaped patch is also imprinted over the panel of the laptop for MIMO and diversity kind of operations to enhance the data rate [4][5], [7]. ...
Antenna means for radiating radio waves, Generally the type of antenna that are used in cell phone handsets in the form of Sleeve dipoles, Whip antennas. In the sleeve dipoles we have a coaxial transmission line, dielectric insert, metal sleeve and line braid. The balancing mode can be achievable with metal sleeve also the stability of the radiation pattern. The role of the dielectric and sleeve are not only maintaining the radiation pattern stable but also walk on the matching. Whenever we have the roll over mobile it is used for getting signal as well as receive signal. Capturing of signal is possible when the mobile starts working. The system represents the capturing of omni directional signal through radiation pattern measurements. The coaxial line inner conductor is along the Z- direction, the signal is symmetric along X-Y plane. In this chapter it is proposed to develop an antenna which can be used as low-cost product in various fields. The construction of the whip antenna must be compact. A spring in the whip antenna plays a vital role as small compact antenna systems which is usually implemented for cell phones. The small compact antenna used for transmitting and receiving signals in an omni-directional system. From the cell phone perspective technology, the printed technology made a significant role which helps in use meandered monopoles used in MEMS. In historical perspective, this complicated design has to concentrate on the types of frequency ranges covered with radiation pattern also we cannot estimate current in the antenna since it is an integrated device, the placement of the other things like a battery also carries power and we have to look into the arrangements in a design in such a way that we must estimate the power dissipation throughout the antenna circuit, we have to rectify if the current which flows through the conductor carries any additional effects. The overall structure of the mobile also affects the radiation pattern. The parasitic effects, nearby circuits, placement of the other devices in a mobile affects the electromagnetic energy distribution. Similarly in all the fields the antenna can be developed with low-cost product manufacturing.
... Printed monopole antenna with the structure of ellipse shaped in the patch, containing various design of ground plane which include rectangular ,modified half circular ,with sleeves is proposed. This method help in achieving a good bandwidth as well as improving the S-parameters characteristics [12]. In order to expand the bandwidth within the frequency range from 2.5GHz and 15GHz, Printed monopole antenna with half elliptical patch shaped is designed. ...
A Printed monopole antenna with coplanar waveguide (CPW)- fed having circular shape patch to met the Ultra Wideband technology whose bandwidth is greater than 500MHz is proposed in this article. To enhance the bandwidth co-planar ground plane plays a great role for a frequency band which belong to mid band for 5G frequency spectrum. A good radiation pattern which is usually in 8shape can be achieved with this proposed antenna.
... Thus, the P-shaped patch is selected to achieve an optimum performance of reflection coefficient throughout the UWB band from 3 to more than 10 GHz. The feedline of the elliptical monopole antenna can be calculated using Equation (5) [37]. The antenna Roger RO4003C substrate has a relative dielectric constant, ε r of 3.38 and thickness, h of 1.524 mm where B = 377π/(2Zo √ ε r ), and Zo = 50Ω. ...
This paper presents a novel design of a modified ultrawideband (UWB) antenna array integrated with a multimode resonator bandpass filter. First, a single UWB antenna is modified and studied, using a P-shape radiated patch instead of a full elliptical patch, for wide impedance bandwidth and high realized gain. Then, a two-element UWB antenna array is developed based on this modified UWB antenna with an inter-element spacing of 0.35 λL, in which λL is the free space wavelength at the lower UWB band edge of 3.1 GHz, compared to 0.27 λL of a reference UWB antenna array designed using a traditional elliptical patch shape. The partial ground plane is designed with a trapezoidal angle to enhance matching throughout the UWB frequency range. The mutual coupling reduction of a modified UWB antenna array enhances the reflection coefficient, bandwidth, and realized gain, maintaining the same size of 1.08 λ0 × 1.08 λ0 × 0.035 λ0 at 6.5 GHz center frequency as that of the reference UWB antenna array. The UWB antenna array performance is investigated at different inter-element spacing distances between the radiated elements. To add filtering capability to the UWB antenna array and eliminate interference from the out-of-band frequencies, a multimode resonator (MMR) bandpass filter (BPF) is incorporated in the feedline while maintaining a compact size. The measurement results showed a close agreement with simulated results. The proposed UWB filtering antenna array design achieved a wide fractional bandwidth of more than 109.87%, a high realized gain of more than 7.4 dBi, and a compact size of 1.08 λ0 × 1.08 λ0 × 0.035 λ0 at 6.5 GHz center frequency. These advantages make the proposed antenna suitable for UWB applications such as indoor tracking, radar systems and positioning applications.
... The substrate lies between patch and ground plane. Literature study showed thatmicrostrip antenna's type, shape, design analytics, and feeding procedures are the commonly accepted methods to improve the antenna's characteristics and performances [9][10][11][12][13][14][15]. These attributes help to improve the antenna parameters including return loss, gain, directivity, and bandwidth.The design process involves that the antenna designer first determines any of these parameter(s) as the required output then tries to optimize their antenna design accordingly. ...
In this paper, using in-depth simulations and measurements, a simple and compact design is engineered for making a circular ring microstrip patch antenna radiating element which is suitable for different ultra wide band(UWB) applications. This design approach is different because it has not utilized the usual method of using a set of electromagnetic equations and calculations to make the radiating antenna. Measurements and simulations were performed on Microwave CST. Using this measurement engineering approach, novelty of proposed antenna structure is obtained by making the required changes in the ground plane. The measurements showed that truncating the ground plane by a square shape structure of 2.5mm by 2.5mm size at the feed point was practically significant to provide an impedance bandwidth (\({S}_{11}cript>\)) ranging from 2.75 GHz to 32.035 GHz with a VSWR which is less than 2. For this entire bandwidth the directivity has shown a variation from 0.8 dBi to 7.9 dBi. The compact size ( 33mm x28mm x1.57mm) , low design complexity, very high bandwidth, good directivity and satisfying VSWR has made this antenna unique among all previously presented UWB antennas.
... A modified square MPA is implemented to achieve wide band characteristics and stable radiation attribute along with appropriate cross-polarization level by the employing rectangular parasitic with the defected ground conductor [18]. Bandwidth expansion is accomplished by the properly adjusting couple of sleeves in the curved ground plane with elliptical patch monopole antenna [19]. Such a large bandwidth with high radiation efficiency is examined owing to the impedance matching by the appropriately embedding rectangular slot in a partial ground surface with annular ring monopole MPA [20] and with octagonal shape monopole MPA [21]. ...
In this paper, a microstrip fed modified circular patch monopole antenna (CPMA) with the rendered ground surface is presented for bandwidth enhancement. In order to extend the bandwidth of a demonstrated antenna, symmetrical slots and equilateral arms inverted U-slot are loaded on the partial ground and patch individually. For additional enhancement in the secured bandwidth, symmetrical notches are truncated from the bottom of the patch. The antenna has a dimension of 30x40x1.6 mm3, which is erected on low cost, FR-4 substrate with relative permittivity , permeability and loss tangent of . The proposed design is analyzed and simulated using high frequency structure simulator (HFSS). The analyzed results are validated through experimented results. The proposed antenna offers a bandwidth of 140.2 % with a maximum radiation efficiency of 94 % over the frequency scope of 2.54 GHz to 14.47 GHz. The crosspolarization levels are also found to be 20-30 dB and 12-23 dB smaller than the co-polarized level for E-plane and H-plane respectively. For better execution and assessment of proposed antenna, a parametric study has been done to analyze the performance of antenna with variations in the length of a partial ground conductor beside the other parameters. The exhibited antenna is suitable for various applications incorporating WiMAX, WLAN, UWB, C-band, X-band and UWB.
... Stair-shaped elements cut in the ground plane show broadband characteristics, due to the excitation of lower-order resonances, have been reported [17]. A new structure has been presented for UWB frequency, such as elliptical patch with a circularly symmetric slot [18], differentially fed partially cut elliptical patches [19]. The ultra-wideband characteristics for multiple applications were achieved by a circular ring printed in the patch [20]. ...
A novel compact antenna for ultra-wideband application is investigated and presented. The proposed structure consists of a modified patch with rectangular parasitic elements at the top, whereas a defective ground plane is etched on the flame retardant FR-4 substrate at the bottom with a 50 Ω feed line. The magnitude of S11 < −10 dB of the structure is 2.7–11 GHz which accounts for the fractional bandwidth of 121.1%. The overall volume of the structure has a compact dimension of 20 × 20 × 1.6 mm³. The gain and antenna efficiency of the structure are 3.34 dB and 79.8%, respectively. The structure exhibits stable radiations across the band of operation. Measured and simulated results of co and cross(X)-polarization are in relatively good agreement. All these properties suggest that the proposed structure finds its applications in WiMAX-band 3.5 and 5.5 GHz, WLAN-band 5.2 and 5.8 GHz, data links to satellites along with various other applications in the wireless communication field.
... In this article, a compact broadband planar monopole microstrip patch antenna with extended patch and a truncated ground plane is proposed for ultra-wideband application. The optimal dimensions of the proposed antenna are 20 × 20 × 1.6 mm 3 . The proposed antenna is fabricated on FR4 substrate that is a low-cost commercially available substrate with εr = 4.3 and a loss tangent of 0.025. ...
In this article, a compact broadband planar monopole microstrip patch antenna with extended patch and a truncated ground plane is proposed for ultra‐wideband application. The optimal dimensions of the proposed antenna are 20 × 20 × 1.6 mm3. The proposed antenna is fabricated on FR4 substrate that is a low‐cost commercially available substrate with εr = 4.3 and a loss tangent of 0.025. The impedance bandwidth (defined by the magnitude of S11 less than −10 dB) of the proposed antenna is 127% (3.13‐14.07 GHz). The peak gain and radiation efficiency of the proposed antenna are 3.4 dB and 78%, respectively. The proposed antenna exhibits a stable radiation pattern at the operating band. The simulated results of the proposed antenna are observed to be in agreement with the measured results when fabricated. The proposed antenna supports various frequency bands such as ultra‐wideband, 3.5/5.5 GHz WiMAX bands, 5.2/5.8 GHz WLAN bands, X Band (8‐12 GHz), satellite communication, and other wireless communication services. The proposed design and its various results have been discussed in further detail.
... A new design of the UWB monopole elliptical patch was presented for UWB applications [88]. The elliptical patch was printed on a FR4 with ε r = 4 7 and h = 1 6 mm, and the overall size of the antenna was 30 × 35 mm 2 . ...
... A new design of a UWB monopole elliptical patch was presented for UWB applications[88]. ...
A review paper concerning wide-band and ultra-wideband (UWB) antennas used for wireless communication purposes in terms of the materials as well as a numerical analysis is presented. These antennas which are taken into account are listed as wide-band microstrip antenna, wide-band monopole antenna over a plate, wide-slot UWB antenna, stacked patch UWB antenna, taper slot (TSA) UWB antenna, metamaterial (MTM) structure UWB antennas, elliptical printed monopole UWB antenna, and flexible wearable UWB antenna. The antennas’ performance is compared based on their size and how they can be applicable for portable communication device applications. This review paper furnishes a proper direction to select varieties of figures in terms of impedance bandwidth, gain, directivity, dimensions, time domain characteristics, and materials affecting these antenna’s characteristics.
