Triple-band Microstrip Patch Antenna Research Articles

Engineering planar antenna using geometry arrangements for wireless communications and satellite applications

A triple-band microstrip patch antenna designed for the IEEE 802.16e WiMAX, IEEE 802.11a WLAN, C-band downlink communications, and Ku-band radar recent applications is suggested in this article. The planned antenna operates at 2.45, 6, and 14 GHz resonant frequencies. The antenna fulfilled triple-band physical characteristics covering industrial, scientific, and medical (ISM) bands between (2.1–2.8) GHz; (5.6–6.5) GHz for wireless local area network (WLAN) or ultra-wideband (UWB) services; and 12.7–16 GHz for future two-way 5G:6G either broadcasting or mobile satellite communications. To achieve better return loss performance, parametric studies are carried out using Microwave Studio (CST MWS). The proposed antenna is designed on the FR4 as a hosting medium of total size 46 × 38 × 1.6 mm3, combined with a planar transmission line (T.L.) feed and defected ground structure (DGS). The simulated antenna’s input reflection coefficient (S11) results and the far-field measurements show good agreement. The fabricated prototype achieves peak gain values of 2.8, 3.8, and 4.7 dBi, respectively, and bidirectional radiation characteristics. A comparative study with other recent publications is implemented to validate the consistency of the design.

A Triband Compact Antenna for Wireless Applications

This paper presents the implementation of a triple band microstrip patch antenna based on modified split ring resonator (SRR) and modified complementary split ring resonator (CSRR) as defected ground plane. The antenna is designed in a FR4 substrate of dielectric constant 4.4 with dimensions as 35 mm × 35 mm × 1.6 mm that comprises a total designed antenna volume of 1960 mm3. Multiband operation is introduced in the antenna through multiple resonators that are introduced in the patch. Impedance matching was provided with the help of partial ground plane and modified SRR in patch. The simulation performance of the antenna is verified using high frequency structural simulator (HFSS) software. The designed antenna resonates at 2.8 GHz, 5.8 GHz, and 6.9 GHz for the application requirements of WiMAX, ISM, and Sub-7 GHz wireless communication. The antenna is fabricated as printed circuit board (PCB) format, and its return loss characteristics are measured using a vector network analyser (VNA). The measurement results of the proposed triband antenna are in good agreement with simulated return loss characteristics.

Triple-Band Microstrip Patch Antenna and its Four-Antenna Module Based on Half-Mode Patch for 5G 4 × 4 MIMO Operation

To meet the demands of the new frequency bands and the <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$4\times 4$ </tex-math></inline-formula> multiple-input multiple-output (MIMO) specification brought by fifth generation (5G), a triple-band microstrip patch antenna and its four-antenna module are proposed. Based on the half-mode microstrip patch, the first three modes of TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1/2,0</sub> , TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1/2,1</sub> , and TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3/2,0</sub> that can be independently tuned are engineered to cover the three Chinese 5G bands (N41/N78/N79). The proposed triple-band microstrip patch antenna with the volume of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$33.5\times 32.5\times 4$ </tex-math></inline-formula> mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> shows the −6 dB frequency bands of 2.47–2.75 GHz, 3.39–3.60 GHz, and 4.69–5.10 GHz, which makes a nice compromise between antenna volume and impedance bandwidths. Four such patches are arranged in a sequentially rotated style to constitute the triple-band four-antenna module, which is with the volume of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$71\times 71\times 4$ </tex-math></inline-formula> mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> . Measured results of the module show high performance. The reflection coefficients of the four elements are almost identical: the bandwidths are 2.50–2.75 GHz, 3.41–3.62 GHz, and 4.68–5.01 GHz; all the isolations are better than −13.3 dB; the average total efficiencies of the four elements are between −1.41 and −1.11 dB, −2.45 and −2.10 dB, and −1.81 and −1.53 dB for N41, N78, and N79, respectively; and all the envelope correlation coefficients (ECCs) are lower than 0.07.

Design and Development of a Compact Triple-Band Microstrip Patch Antenna Loaded with Shorting Pin.

A single layer coaxial probe fed compact shorted patch antenna capable of triple band operation for GSM, ISM and WiMax application has been designed, fabricated and analyzed. The designed antenna generates three separate resonances to cover 1.9 GHz DCS, Bluetooth and WLAN (2.4 GHz), 3.5 GHz WiMax bands while maintaining a small overall size of 36*28*1.6 mm3. A prototype is fabricated and experimental results show good radiation characteristics over the operating bands.

Design and Performance Analysis of a Triple Band Micro-Strip Patch Antenna with CPW-Fed

Design and Performance Analysis of a Triple Band Micro-Strip Patch Antenna with CPW-Fed

Symmetrical Slot on C-Shape Microstrip Patch for Tri-band Application

A new triple band microstrip patch antenna is presented in this paper for wireless communication. By adjusting the dimension of ground plane and patch, its fractional bandwidth at primary resonance mode can increased sufficiently to achieve desired bandwidth of proposed antenna. In proposed design, it has been found that the symmetrical position of patch over ground plane have clear impact on overall antenna performance. Many antenna structures have been modeled to demonstrate the effects of these parameters on the resulting triple band response. We design antenna for (1.07-1.75GHz), (3.22-4.35) and (5.78-6.5GHz).

Optimization and Development of O-shaped Triple-band Microstrip Patch Antenna for Wireless Communication Applications

ABSTRACTIn this work, a triple-band patch antenna for wireless communication applications has been proposed. For designing an antenna with suitable resonance characteristics to cover many frequency bands simultaneously, a strip is coupled on the right side of an O-shaped patch element and ground plane has been modified with an inverted L-slot and two unequal slits. The proposed design resonates in three different bands, viz. 2.35–2.86, 3.0–4.3, and 5.64–6.85 GHz with respective bandwidths of 510 MHz, 1.3 GHz, and 1.21 GHz. Obviously, the achieved bands are suitable to cover wireless local area network/industrial, scientific and medical band, Bluetooth, Globalstar satellite phone uplink, worldwide interoperability for microwave access, International Mobile Telecommunication, intelligent transport systems, and satellite communication. The overall size of the proposed antenna is 35 × 30 mm2. The fabrication and measurement of parameters of proposed structure was carried out to verify the simulated results. Finally, complete geometrical method for the design of O-shaped microstrip patch antenna with modified ground plane is presented.

Design and Implementation of Triple Band Microstrip Patch Antenna using LTCC and RT Duroid Including Random Effect

For most of the weather antenna application, the antenna must be covered with radome to enhance operational efficiency in all weather circumstances. This radome provides environmental protection and along with that it enhances antenna performance. The antenna manufacturer must evaluate radome scattering level so that they can estimate the parameter of cost effective antenna and can provide maximum efficiency at minimum power requirement. It is well known that continuous antenna measurement on the radome enclosed antenna is difficult to perform, the analysis of the radome's effect on antenna pattern can be done by practical method. We analyzed microstip patch antenna in IE3D by finite moment method. The proposed antenna design have been analyzed between 1GHz to 20GHz. When the proposed antenna design for different geometries (i.e. Rectangular and Circular) were examined for two dielectric i.e. RT Duroid 5870 with dielectric constant 2.33, loss tangent 0.0005 and Ferro A6M LTCC with dielectric constant 5.9, loss tangent 0.0012 the results are: In case of rectangular geometry directivity is 11.1329 and efficiency is 39.9296% and in case of circular geometry directivity is 7.67422 and efficiency is 100%.

A Modified Wheeler Cap Method for Efficiency Measurements of Probe-Fed Patch Antennas With Multiple Resonances

We propose a modified Wheeler cap method to accurately measure the radiation efficiency of patch antennas with multiple resonances by modeling their impedance as a high-order circuit model. The radiation efficiency is obtained from the power consumption ratio between the radiation and loss conductances using a circuit model we developed. Our technique is validated by measuring the efficiencies of a circularly polarized microstrip patch antenna and a triple-band microstrip patch antenna. The measurement results are in close agreement with those produced by simulations, whereas the Wheeler cap method with a series-(or parallel-) resonant circuit model is shown to be unreliable.

Triple band microstrip patch antenna using a spur-line filter and a perturbation segment technique

A triple-band microstrip patch antenna is demonstrated by using a spur-line bandstop filter and a perturbation segment technique. This multifrequency operation can be obtained without increasing either the size or the thickness of the patch. In addition, through experimental results, the characteristics in all channels are shown to be nearly identical.