共查询到20条相似文献,搜索用时 15 毫秒
1.
Sen Wang Rui-Xian Wang 《AEUE-International Journal of Electronics and Communications》2012,66(8):655-658
This paper presents the design and implementation of a tunable CMOS Wilkinson power divider using active inductors. Compared to a conventional active inductor topology, the proposed active inductor features higher inductance tuning range, higher self-resonant frequency, and lower power consumption by introducing two additional transistors. Benefitting from the superior inductor, the low-loss Wilkinson power divider is practical while maintaining a wide tuning range. The design consuming 10.2 mW demonstrates an insertion loss of 0.67 dB, a return loss of 27 dB, and an isolation of 22.6 dB at 8 GHz. Moreover, the tuning range of the circuit is between 5.8 GHz and 10.4 GHz, rendering a 4.6 GHz bandwidth. The active chip size of the lumped design is merely 0.25 mm × 0.15 mm. 相似文献
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Wilkinson功分器是一种常用的无源器件,随着通信设备小型化的要求越来越高,无源器件的体积成为其发展瓶颈。为解决这个问题,在分析螺旋电感主要参数及等效电路基础上,提出了一种基于π型等效1/4波长传输线原理,利用集总参数元件组成等效微带线电路的集总参数方法,设计出Si沉底上的螺旋电感和片上电容来实现微波单片集成(MMIC)电路的Wil-kinson功分器。实验表明,同等性能情况下,该方法设计的Wilkinson功分器可以有效减少Wil-kinson功分器的外形尺寸。 相似文献
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本文提出一种基于LTCC技术的高性能微型Wilkinson功率分配器的设计方法。从Wilkinson功分器的奇偶模阻抗理论出发,将功分器设计转化为在偶模下求解阻抗比为2:1的阻抗变换和在奇模下求解阻抗匹配的问题,采用 LC 阻抗变换节取代传统四分之一波长传输线,减小了功分器体积。通过ADS构建原理图并优化,运用HFSS进行拟合,最后通过LTCC工艺加工制造,实测曲线与HFSS仿真曲线吻合较好,在2.7GHz~3.0GHz的带宽内插入损耗小于3.2dB,隔离度大于20 dB,输入端口反射系数小于-20dB,尺寸仅为3.2mm×1.6mm×0.9 mm。 相似文献
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A miniaturized dual band Wilkinson power divider (WPD) with an ultra wideband harmonic suppression is proposed, in this paper. Capacitor loaded transmission lines (CLTL) are used in the proposed circuit. The proposed WPD has a significant size reduction more than 80% compared to a primary power divider. In the design procedure, values of the impedances and electrical length for all of the applied transmission lines and also applied lumped capacitors are analytically obtained. Results of fabricated power divider have a good agreement with simulated and show that, the insertion loss at two operating frequencies of 0.9 and 1.8 GHz are less than 0.1 dB and also a wide range of unwanted harmonics (3.1–10.6 GHz) has been achieved. 相似文献
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A 4.1 unequal Wilkinson power divider 总被引:4,自引:0,他引:4
Jeng-Sik Lim Sung-Won Lee Chul-Soo Kim Jun-Seek Park Dal Ahn Sangwook Nam 《Microwave and Wireless Components Letters, IEEE》2001,11(3):124-126
This letter presents the design and measured performances of a microstrip 4:1 unequal Wilkinson power divider. The divider is designed using the conventional Wilkinson topology with the defected ground structure (DGS). The DGS on the ground plane provides an additional effective inductive component to the microstrip line. This enables the microstrip line to be realized with very high impedance of over 150 Ω. By employing the DGS to the unequal Wilkinson topology, 4:1 power dividing ratio can be obtained easily without any problem in realization, while it has been impractical to fabricate a 4:1 divider using the conventional microstrip line because of very thin conductor width and extremely low aspect ratio (W/H). As an example, a 4:1 divider has been designed and measured at 1.5 GHz in order to show the validity of the proposed DGS and unequal divider. The measured performances of the 4:1 unequal power divider well agree with the exactly same dividing ratio as that expected 相似文献
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A. I. Chizhov S. A. Palashov 《Journal of Communications Technology and Electronics》2010,55(4):435-438
A modified Wilkinson power divider that allows the mutual interference between the conductors in the signal-dividing channels
to be taken into account is proposed and experimentally investigated. 相似文献
8.
Ali Reza Hazeri 《International Journal of Electronics》2013,100(4):575-584
The challenge facing SerDes (Serialiser De-Serialiser) designers is common with all current communications technologies. Industry advances show a trend to increase speed, reduce power and improve efficiency. In this article a novel line driver that can operate at speeds of up to 40 Gbps with a power supply of 1?V and a power consumption of 4.54?mW/Gb/s is presented. Pre-distortion on the front-end is used to maintain signal integrity. 相似文献
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Fully integrated unequal Wilkinson power divider with EBG CPW 总被引:1,自引:0,他引:1
Young-Joon Ko Jae-Yeong Park Jong-Uk Bu 《Microwave and Wireless Components Letters, IEEE》2003,13(7):276-278
In this paper, a CPW with electromagnetic bandgap (EBG CPW) is newly proposed for designing a transmission line with high impedance. After designing, fabricating, and evaluating the characteristic impedance of the proposed EBG CPW transmission line, it will be applied to an integrated unequal Wilkinson power divider. In the EM simulation, the EBG-CPW transmission line with 10 /spl mu/m in line width has the same characteristic impedance as a CPW with a line width of 2.5 /spl mu/m. The insertion and return losses of the fabricated power divider with a power ratio of 1 to 3 are less than -0.7 dB and -15 dB, respectively. It also has excellent isolation characteristics with more than -20 dB. The experimental results are good agreement with the simulation. 相似文献
10.
A new dual-band operation scheme is proposed for the Wilkinson power divider. Each port of the divider is extended through a transmission line section to achieve dual-band operation over a wide range of band-ratios with enhanced bandwidth for small band-ratios. Exact formulas are presented in a simple form for the design and analysis of the divider with experimental verification. 相似文献
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提出了一种集总元件宽带Wilkinson功分器的分析及设计方法。从功分器的奇偶模阻抗理论分析出发,将功分器设计转化为在偶模下求解阻抗比为2:1的宽带阻抗变换和在奇模下求解宽带阻抗匹配的问题,采用LC阻抗变换节取代传统电路的λ/4传输线,减小功分器体积,并推导出两级功分器的元件解算公式。经ADS仿真验证,由解算公式得到的两级功分器,在760~1240MHz的带宽内功率分配损耗小于0.1dB,隔离度大于20dB,输入输出端口反射系数均小于-20dB,可用带宽fH/fL为1.64,实现了Wilkinson功分器小尺寸、带宽大的优点。 相似文献
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Modified Wilkinson power divider for nth harmonic suppression 总被引:1,自引:0,他引:1
Kun-Hui Yi Bongkoo Kang 《Microwave and Wireless Components Letters, IEEE》2003,13(5):178-180
This paper presents a structure of the Wilkinson power divider that can suppress the nth harmonic output. The power divider consists of two /spl lambda//4n open stubs, which are located at the center of /spl lambda//4 branches and a parallel connection of a resistor and an inductor, which shunts the output ports. Experimental results show that this power divider suppresses the third harmonic component to less than -40 dB, while maintaining the characteristics of a conventional Wilkinson power divider; featuring an equal power split, a simultaneous impedance matching at all ports and a good isolation between output ports. These results agree quite well with the simulation results. 相似文献
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研究并设计了一种带状线宽带Wilkinson一分四功分器,实验结果显示,该功分器在6GHz~14GHz的宽频带范围内性能良好,其隔离度在整个频带范围内大于35dB,同时输入与输出端口均实现了良好的匹配且各输出口幅度相位一致性良好。 相似文献
16.
为了实现功分器工作在任意两个频率的目的,设计了一种新型功分器.基于奇偶模分析方法,利用微波网络理论推导了电路参数的设计公式,通过求解相应的非线性方程组获取了具体电路参数.制作了一个工作频率为1GHz和2.6 GHz的双频Wilkinson功分器.实物测试结果表明,该功分器在两个中心频率的传输衰减小于3.3dB,端口回波损耗大于21 dB,端口隔离度大于28 dB,在中心频率100 MHz的通带范围内都具有良好性能,验证了设计方法的可靠性. 相似文献
17.
A modified design that can reject the nth harmonic output in the Wilkinson power divider is presented. After adding transmission lines between the resistor and each output port of the traditional design, a solution of the modified Wilkinson divider can be found. Experimental results show the third harmonic suppression to be -37.0 dB, while maintaining conventional performance at the fundamental frequency. 相似文献
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《电子元件与材料》2016,(4):58-60
提出了一种基于LTCC技术的UHF波段宽带集总Wilkinson功率分配器。该功分器由LC结构组合而成,根据奇偶模阻抗理论,这样的结构可实现更高的隔离度。采用了螺旋电感结构来实现功分器的小型化。通过ADS电路仿真以及HFSS三维建模设计,功分器的加工测试结果与电磁仿真结果相匹配。功分器的中心频率为1.05 GHz,带宽为300 MHz,两输出端口插入损耗均优于3.26 d B,隔离度优于28 d B(1.08 GHz相似文献