A novel 3D cavity diplexer with compact size using LTCC technologies for V-band wireless communication systems

2014 ◽  
Vol 25 (2) ◽  
pp. 141-145 ◽  
Author(s):  
Hui Chu ◽  
Lei Bian ◽  
Yong Xin Guo
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Wireless Communication Systems ◽  
V Band ◽  
Compact Size

scholarly journals A six-channel microstrip diplexer for multi-service wireless communication systems

2020 ◽  
Vol 41 (3) ◽  
Author(s):  
Farhad Fouladi ◽  
Abbas Rezaei
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
The Other ◽  
Wireless Communication Systems ◽  
Frequency Division ◽  
Compact Size ◽  
Coupled Lines ◽  
Simulation Results ◽  
Insertion Losses

In this paper, a six-channel microstrip diplexer is designed and fabricated. It operates at 0.75/0.85/1/1.25/1.6/1.8 GHz for multi-service wireless communication systems. It consists of two stub-loaded resonators, which are integrated by coupled lines. The channels are close together, which makes the proposed diplexer suitable for frequency division duplex (FDD) schemes. The proposed structure has a compact size of 0.025 λg2 where λg is the guided wavelength calculated at 0.75 GHz. The other advantages of the introduced multi-channel diplexer are the low insertion losses of 1.62/1.27/0.43/0.53/1.26 and 1 dB, as well as good return losses of 26/26/25/25/21.7 and 22 dB at 0.75/0.85/1/1.25/1.6/1.8 GHz respectively. A good isolation of less than 22 dB is obtained between the channels. In order to design the presented diplexer a designing technique is used which is based on the proposing of an equivalent approximated LC model and calculating the inductors and capacitors. To confirm the simulation results, the introduced diplexer is fabricated and measured.

scholarly journals Design Methods for Reconfigurable Filters: A Review

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Sunil Raosaheb Gagare . ◽  
Dolly Reney .
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Filter Design ◽  
Cost Effective ◽  
Design Methods ◽  
Microwave Filters ◽  
Wireless Communication Systems ◽  
Compact Size ◽  
Electrical Components ◽  
Reconfigurable Filters

The new design methods of microwave filter has proved its significance for use in wireless communication systems. Modern wireless communication systems require microwave filters to have stringent specifications such as compact size, robust, conformal, light weight and more importantly cost effective while maintaining its electrical characteristics. Micro-strip filter design and reconfigurable filters present a better prospectus in this regards as it meets the specifications of modern wireless communication applications. Reconfigurable filters can provide control over parameters such as frequency, bandwidth and selectivity while reducing the need of number of switches sandwiched between electrical components. Different methods have provided a new dimension for designing microwave filters .In this article, we present a review on design methods for reconfigurable band-pass filters for next generation wireless technologies such as 4G, 5G and IOT.

scholarly journals Complete Characterization of Novel MHMICs for V-Band Communication Systems

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
C. Hannachi ◽  
D. Hammou ◽  
T. Djerafi ◽  
Z. Ouardirhi ◽  
S. O. Tatu
Keyword(s):  
Wireless Communication ◽  
Millimeter Wave ◽  
Communication Systems ◽  
Complete Characterization ◽  
Power Divider ◽  
Wireless Communication Systems ◽  
V Band ◽  
Hybrid Coupler ◽  
Millimeter Wave Circuits

This paper presents the characterization results of several new passive millimeter wave circuits integrated on very thin ceramic substrate. The work is focused on the design and characterization of a novel rounded Wilkinson power divider, a 90° hybrid coupler, a rat-race coupler, and a novel six-port (multiport) circuit. Measurements show the wideband characteristics, allowing therefore their use for multi-Gb/s V-band wireless communication systems.

scholarly journals Design and Analysis of a Compact UWB Band Notch Antenna for Wireless Communication

2020 ◽  
Vol 3 (1) ◽  
pp. 6
Author(s):  
Mohammad Monirujjaman Khan
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Ultra Wideband ◽  
Wireless Communication Systems ◽  
Area Network ◽  
Compact Size ◽  
Simulation Based

Development and investigation of a miniaturized ultra-wideband band notch antenna is demonstrated in this paper. The antenna was modeled and simulated using Computer Simulation Technology (CST)TM Microwave Studio software. The simulated results of this antenna are presented and analyzed. The performance parameters such as return loss, gain, radiation efficiency, radiation patterns are simulation-based results provided here. The main objective of this paper was to obtain band notch characteristics at the Wireless Local Area Network (5.15–5.8 GHz) and WiMax (5.25–5.85 GHz) in the UWB frequency ranges of 3.1–10.6 GHz in order to avoid interference. Results and analysis show that the antenna meets the objective and shows very good results. It has very compact size as well which is attractive feature of this antenna that will make it suitable for ultra-wideband wireless communication systems.

Design and Implementation of an Efficient Parallel LFSR Architecture for Wireless Communication Systems

2019 ◽  
Vol 14 ◽  
Author(s):  
A. Suresh Babu ◽  
B. Anand
Keyword(s):  
Wireless Communication ◽  
Power Consumption ◽  
Low Power ◽  
Communication Systems ◽  
High Speed ◽  
Design Tool ◽  
Shift Register ◽  
Linear Feedback ◽  
Wireless Communication Systems ◽  
Coverage Area

: A Linear Feedback Shift Register (LFSR) considers a linear function typically an XOR operation of the previous state as an input to the current state. This paper describes in detail the recent Wireless Communication Systems (WCS) and techniques related to LFSR. Cryptographic methods and reconfigurable computing are two different applications used in the proposed shift register with improved speed and decreased power consumption. Comparing with the existing individual applications, the proposed shift register obtained >15 to <=45% of decreased power consumption with 30% of reduced coverage area. Hence this proposed low power high speed LFSR design suits for various low power high speed applications, for example wireless communication. The entire design architecture is simulated and verified in VHDL language. To synthesis a standard cell library of 0.7um CMOS is used. A custom design tool has been developed for measuring the power. From the results, it is obtained that the cryptographic efficiency is improved regarding time and complexity comparing with the existing algorithms. Hence, the proposed LFSR architecture can be used for any wireless applications due to parallel processing, multiple access and cryptographic methods.

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