scholarly journals Analysis of a Compact Wideband Slotted Antenna for Ku Band Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
M. R. Ahsan ◽  
M. Habib Ullah ◽  
F. Mansor ◽  
N. Misran ◽  
T. Islam
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Printed Circuit Board ◽  
Design Procedure ◽  
Circuit Board ◽  
Successful Completion ◽  
Printed Circuit ◽  
Slotted Antenna ◽  
Stable Variation ◽  
Ku Band

The design procedure and physical module of a compact wideband patch antenna for Ku band application are presented in this paper. Finite element method based on 3D electromagnetic field solver has been utilized for the designing and analyzing process of proposed microstrip line fed modifiedE-Hshaped electrically small patch antenna. After successful completion of the design process through various simulations, the proposed antenna has been fabricated on printed circuit board (PCB) and its characteristics have been studied. The parameters of the proposed antenna prototype have been measured in standard far-field rectangular shape anechoic measurement compartment. It is apparent from the measured antenna parameters that the proposed antenna achieved almost stable variation of radiation pattern over the entire operational band with 1380 MHz of-10 dB return loss bandwidth. The maximum gain of 7.8 dBi and 89.97% average efficiency within the operating band from 17.15 GHz to 18.53 GHz ensure the suitability of the proposed antenna for Ku band applications.

A K-band delay line based on parasitic reduced artificial left-handed transmission line

2013 ◽  
Vol 5 (6) ◽  
pp. 709-711
Author(s):  
Hyun-Seung Lee ◽  
Eun-Gyu Lee ◽  
Choul-Young Kim
Keyword(s):  
Transmission Line ◽  
Return Loss ◽  
Printed Circuit Board ◽  
Delay Line ◽  
Circuit Board ◽  
Printed Circuit ◽  
Left Handed ◽  
24 Ghz ◽  
K Band ◽  
Interdigital Capacitors

A K-band microstrip delay line based on parasitic reduced left-handed transmission line (LHTL) with interdigital capacitors and shunt inductors is demonstrated with the aid of printed circuit board technology. The proposed delay line has ground slots under the interdigital capacitors to reduce the parasitic capacitance. The time delay of the proposed LHTLs is approximately 2.6 times larger than that of the conventional LHTLs. The input return loss of the proposed LHTL at 24 GHz is −16.9 dB and less than −10 dB from 20.5 to 26.1 GHz.

scholarly journals Using Multilayered Substrate Integrated Waveguide to Design Microwave Gain Equalizer

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yongfei Wang ◽  
Dongfang Zhou ◽  
Yi Zhang ◽  
Chaowen Chang
Keyword(s):  
Equivalent Circuit ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Substrate Integrated Waveguide ◽  
Equivalent Circuit Analysis ◽  
Compact Structure ◽  
Printed Circuit ◽  
Board Process ◽  
Insight Into ◽  
Ku Band

This paper presents the design and experiment of a novel microwave gain equalizer based on the substrate integrated waveguide (SIW) technique. The proposed equalizer is formed by an SIW loaded by SIW resonators, which has very compact structure and can compensate for gain slope of microwave systems. Equivalent circuit analysis is given about the proposed structure for a better insight into the structure’s response. A Ku-Band equalizer with four SIW resonators is simulated and fabricated with a multilayer printed circuit board process. The measured results show good performance and agreement with the simulated results; an attenuation slope of −4.5 dB over 12.5–13.5 GHz is reached with a size reduction of 76%.

scholarly journals A Double Inverted F-Shape Patch Antenna for Dual-Band Operation

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
M. M. Islam ◽  
M. R. I. Faruque ◽  
W. Hueyshin ◽  
J. S. Mandeep ◽  
T. Islam
Keyword(s):  
Finite Element Method ◽  
Patch Antenna ◽  
High Frequency ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Dual Band ◽  
The Finite Element Method ◽  
Microstrip Transmission Line ◽  
Printed Circuit ◽  
Measured Impedance

A double inverted F-shape patch antenna is presented for dual-band operation. The proposed antenna is comprised of circular and rectangular slots on a printed circuit board of 40 mm × 40 mm × 1.6 mm with a 50 Ω microstrip transmission line. Commercially available high frequency structural simulator (HFSS) based on the finite element method (FEM) has been adopted in this investigation. It has a measured impedance bandwidths (2 : 1 VSWR) of 18.53% on the lower band and 7.8% on the upper band, respectively. It has achieved stable radiation efficiencies of 79.76% and 80.36% with average gains of 7.82 dBi and 5.66 dBi in the operating frequency bands. Moreover, numerical simulations have been indicated as an important uniformity with measured results.

scholarly journals Multiband Microstrip Patch Antenna for IoT Applications

2019 ◽  
Vol 9 (1) ◽  
pp. 2455-2457
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Printed Circuit Board ◽  
Dielectric Material ◽  
Ground Plane ◽  
Microstrip Patch Antenna ◽  
Circuit Board ◽  
Microstrip Patch ◽  
Resonance Frequencies ◽  
And Performance

In this paper, a planar multiband microstrip patch antenna is presented for narrow band internet of things (NBIoT) applications. The simple planar structure covers three of the approved bands (830-840 MHz), (850-890 MHz) and (1190-1200 MHz). The return loss at resonance frequencies is less than20dB and radiation pattern is omnidirectional as desired, for all the bands. Simple basic equations of microstrip patch antenna are used for design. The simulation and performance analysis is done using HFSS tool. The design considers simple, easily available printed circuit board (PCB) with FR4 dielectric material between the patch and ground plane. Which is inexpensive, fulfills the basic need of the application. The optimetrics of the HFSS simulation tool are handy, used extensively to find appropriate feed position, optimize return loss, gain and to tune the resonance frequencies.

scholarly journals Perancangan Quadband BPF dengan Komponen Lumpeduntuk Sistem m-BWA

2016 ◽  
Vol 13 (2) ◽  
pp. 47
Author(s):  
Gunawan Wibisono ◽  
Daniel Simanjuntak ◽  
Taufiq Alif Kurniawan
Keyword(s):  
Return Loss ◽  
Printed Circuit Board ◽  
Group Delay ◽  
Bandpass Filter ◽  
Circuit Board ◽  
Design System ◽  
Broadband Wireless ◽  
Printed Circuit ◽  
Advance Design System ◽  
Mobile Broadband Wireless Access

Ada banyak teknologi mobile broadband wireless access (m-BWA) yang saat ini digunakan, agar bisa mencakup seluruh teknologi m-BWA yang ada dalam sebuah perangkat maka diperlukan teknologi multiband . Salah satu komponen penting yang mendukung perkembangan teknologi m-BWA adalah bandpass filter (BPF), yang berfungsi untuk memilah-milah dan mengisolasi band yang spesifik dari interferensi pada transceiver radio frequency (RF). Pada penelitian ini akan dirancang quadband BPF yang beroperasi pada frekuensi tengah 950 MHz dan 1,85 GHz untuk aplikasi GSM, 2,35 GHz untuk aplikasi WiMAX, dan 2,65 GHz untuk aplikasi LTE secara simultan. Rangkaian quadband BPF dibangun dan dikembangkan dari konsep dualband BPF dengan menambahkan sejumlah cross coupling pada inductive coupling BPF tersebut untuk menghasilkan zero pada frekuensi tertentu yang diharapkan menggunakan komponen lumped. BPF yang dirancang memiliki spesifikasi, input return loss (S11) < -10 dB, insertion loss (S21) > -3 dB, dan voltage standing wave ratio (VSWR) antara 1 – 2, dan group delay kurang dari 10 ns. Perancangan dilakukan menggunakan perangkat lunak Advance Design System (ADS) dan kemudian difabrikasi berbasis printed circuit board (PCB). Hasil simulasi BPF menunjukkan kinerja quadband BPF memenuhi kriteria perancangan sedangkan hasil fabrikasi mengalami pergeseran.

A Novel Miniature Printed UWB Monopole Patch Antenna

2012 ◽  
Vol 443-444 ◽  
pp. 198-201
Author(s):  
Ying Qing Xia ◽  
Jia Luo
Keyword(s):  
Patch Antenna ◽  
Printed Circuit Board ◽  
Simple Structure ◽  
Circuit Board ◽  
Printed Circuit

A novel monopole patch antenna with very simple structure to fabricate on a printed circuit board is proposed to operate from 3.05 to 11.8GHz for UWB application. Ellipse technique is used to optimize its main parameters when an improvement of its compact profile is achieved. The designed antenna has miniature total volume of 18.6mm×18mm×1mm, and quasi-omnidirectional pattern in the X-Y plane across the major bandwidth.

scholarly journals A Low-Cost and Efficient Microstrip-Fed Air-Substrate-Integrated Waveguide Slot Array

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 338
Author(s):  
Linfeng Li ◽  
Jie-Bang Yan
Keyword(s):  
Printed Circuit Board ◽  
High Efficiency ◽  
Low Cost ◽  
Design Procedure ◽  
Substrate Material ◽  
Circuit Board ◽  
Substrate Integrated Waveguide ◽  
Printed Circuit ◽  
Waveguide Transition ◽  
Pcb Manufacturing

A microstrip-fed air-substrate-integrated waveguide (ASIW) slot array with high efficiency and low cost is presented. The design cuts out the substrate material within SIW, replaces the vias with metallic sidewalls, and uses a simple microstrip line-waveguide transition to feed the slot array. Radiating slots are cut on a 5-mil brass-plate, which covers the top of the substrate cutout to resemble a hollow waveguide structure. This implementation provides a simple and efficient antenna array solution for millimeter-wave (mm-wave) applications. Meanwhile, the fabrication is compatible with the standard printed circuit board (PCB) manufacturing process. To demonstrate the concept, a 4-element ASIW slot array working at the n257 band for 5G communications was designed using low-cost Rogers 4350B and FR4 substrate materials. Our simulation result shows 18% more efficiency than a conventional SIW slot array using the same substrate. The fabricated prototype shows |S11| < −15 dB over 27–29 GHz and a peak realized gain of 10.1 dBi at 28.6 GHz. The design procedure, prototyping process, and design analysis are discussed in the paper.

Miniaturized branch-line coupler based on slow-wave microstrip lines

2018 ◽  
Vol 10 (10) ◽  
pp. 1103-1106 ◽  
Author(s):  
H. Alhalabi ◽  
H. Issa ◽  
E. Pistono ◽  
D. Kaddour ◽  
F. Podevin ◽  
...  
Keyword(s):  
Slow Wave ◽  
Transmission Lines ◽  
Insertion Loss ◽  
Return Loss ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Wave Effect ◽  
Branch Line ◽  
Printed Circuit ◽  
Microstrip Lines

AbstractThis paper presents a miniaturized 3-dB branch-line coupler based on slow-wave microstrip transmission lines. The miniaturized coupler operating at 2.45 GHz is designed and implemented on a double-layer printed circuit board substrate with blind metallic vias embedded in the lower substrate layer providing the slow-wave effect. Based on this concept, a 43% size miniaturization is achieved as compared with a classical microstrip branch-line coupler prototype. The measured S parameters present a return loss of 25.5 dB and an average insertion loss equal to 0.05 dB at the operating frequency.

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