Rf-Mems Components In Mobile Communication Terminal

2006 ◽  
Author(s):  
Antriksh Singhal ◽  
Gaurang Gupta
Keyword(s):  
Mobile Communication ◽  
Rf Mems ◽  
Mobile Communication Terminal

Design and Simulation of K Band RF MEMS Tunable Combline Filter

2014 ◽  
Vol 875-877 ◽  
pp. 2219-2223 ◽  
Author(s):  
Zhong Liang Deng ◽  
Xing Jie Cao
Keyword(s):  
Mobile Communication ◽  
Communication Systems ◽  
Bandpass Filter ◽  
Rf Mems ◽  
Bandpass Filters ◽  
Simulation Software ◽  
Frequency Range ◽  
Mobile Communication Systems ◽  
Simulation Results ◽  
Tunable Frequency

Tunable bandpass filters are generally preferred and are used extensively in the mobile communication systems. In this paper, a design of the RF MEMS tunable combline bandpass filter is proposed. Firstly, the theory of the RF MEMS tunable combline bandpass filter is presented. Secondly, a combline bandpass filter which have a tunable frequency range from 18GHz to 27GHz is designed and simulated by using the EDA simulation software. Its bandwidth is about 1GHz in the tunable frequency range. From the simulation results, the designed filter is not only compact and effortless to fabricate but also relatively superior in some aspects.

Reconfigurable Planar Monopole Antenna for Fifth-Generation Mobile Communication System

2021 ◽  
Vol 36 (1) ◽  
pp. 67-74
Author(s):  
Peng Chen ◽  
Lihua Wang ◽  
Zhonghua Ma
Keyword(s):  
Mobile Communication ◽  
Monopole Antenna ◽  
Frequency Bands ◽  
Fifth Generation ◽  
Current Path ◽  
Longitudinal Length ◽  
Dc Bias ◽  
Planar Monopole Antenna ◽  
Mobile Communication Terminal ◽  
Frequency Current

A frequency reconfigurable planar monopole antenna for fifth-generation (5G) mobile communication terminal equipment is presented. The proposed antenna uses a meandered monopole, branch resonance and other techniques to make the antenna resonant in multiple frequency bands. The antenna is compact in size (115 mm × 55 mm × 0.8 mm) and has a longitudinal length less than one-tenth of the resonant wavelength (working at 1.79 GHz). The pin diode is designed between the planar meandered monopole antenna and branch. The current path of the high-frequency current on the antenna can be easily controlled by controlling the DC bias voltage of the diode, and the operating frequency of the antenna is switched between three frequency bands. The antenna is fed directly through a 50 Ω matched transmission line. The measured data of the antenna in the anechoic chamber show good consistency with simulation data. The radiation pattern of the antenna shows good omnidirectional characteristics and good frequency characteristics, with a maximum radiation gain of 13.6 dBi. Experimental results demonstrate that the antenna can meet the design requirements of 5G communication.

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