一种新颖的双频不等分威尔金森功率分配器

给出了设计双频不等分威尔金森功分器的一种方法。该功率分配器在任意两个频点上实现任意功率分配比的同时,兼顾传统功率分配器的各项特性。给出了该功率分配器的结构以及各项设计参数的解析公式。仿真与实验结果证明了本文设计方法的有效性。     

Fully integrated unequal Wilkinson power divider with EBG CPW

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.     

Arbitrary dual-band unequal Wilkinson power divider based on negative refractive index transmission lines

This paper focused on the application of negative refractive index transmission line (NRI-TL) in dual-band unequal Wilkinson power divider (WPD) with controllable frequency and power dividing ratio. Theory and design procedure of the dual-band NRI-TL are presented in details. For demonstration, two dual-band unequal Wilkinson power dividers (WPDs) with power dividing ratio of 2 : 1 and operating frequencies of 0.9 and 1.8 GHz are designed, fabricated and tested. The first unequal divider is based on 2-stage NRI-TLs and the second one is based on 4-stage NRI-TLs. In addition, these two types of NRI-TLs are presented to demonstrate that by increasing the number of NRI-TL unit-cells the phase response of the NRI-TLs converge to the desired characteristic. The good agreement between measured and simulated results confirmed the design concept and derived closed-form design equations. Measurements show that the first divider has 18.37% and 21.86% relative bandwidths and the second one has 33.52% and 29.12% relative bandwidths at 0.9 and 1.8 GHz, respectively. The design concept of this paper can be extended to equal dual-band power dividers with arbitrary frequency ratio.     

Design and analysis of a 3-way unequal split ultra-wideband Wilkinson power divider

In this article, a 3-way ultra-wideband (UWB) unequal split Wilkinson power divider (WPD) using tapered line transformers is presented. Three tapered lines are designed through the even-mode analysis, and used instead of the conventional 3-way WPD arms. In addition to the three main arms, three additional tapered transformers are used to match the output ports to the 50?Ω connectors. To achieve an acceptable output ports matching and isolation, multiple resistors are uniformly distributed and mounted between the three tapered arms of the WPD. An optimisation process is carried out to obtain the values of these resistors considering the odd-mode analysis. The proposed WPD is designed to operate over the frequency band of 2–12?GHz, and simulated using two full-wave EM simulators. Full-wave simulation and experimental results verify the design procedure.     

An ultra wideband Wilkinson power divider

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.     

Modification of the Wilkinson power divider

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.     

A tunable CMOS Wilkinson power divider using active inductors

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.     

A miniaturized Wilkinson power divider with CMOS active inductors

A miniaturized Wilkinson power divider implemented in a standard 0.18-/spl mu/m CMOS process is presented in this letter. By using active inductors for the circuit implementation, a significant area reduction can be achieved due to the absence of distributed components and spiral inductors. The power divider is designed at a center frequency of 4.5GHz for equal power dividing with all ports matched to 50/spl Omega/. Drawing a dc current of 9.3mA from a 1.8-V supply voltage, the fabricated circuit exhibits an insertion loss less than 0.16dB and a return loss better than 30dB at the center frequency while maintaining good isolation between the output ports. The active area of the miniaturized Wilkinson power divider is 150/spl times/100/spl mu/m/sup 2/, which is suitable for system integration in monolithic microwave integrated circuit (MMIC) applications.     

一种低损耗LTCC威尔金森功分器设计

设计了一种低损耗LTCC威尔金森功分器。采用低温共烧陶瓷技术,达到器件小型化设计的目的。利用交叉叠层的方法,减小了两路电路自身的寄生电容从而减小了功分器的插入损耗。为了验证该设计的可行性,采用这种结构设计制作通带为1 425~1 900 MHz的威尔金森功分器,加工后测得其插入损耗小于–3.25 d B,尺寸仅为3.2mm×1.6 mm×0.9 mm。     

集总元件宽带Wilkinson功分器的研究

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。     

Modified Wilkinson power divider for nth harmonic suppression

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.     

射频宽带Wilkinson功分器的设计

文章设计了一款工作频率为1~3 GHz的射频宽带Wilkinson功分器。该功分器采用3枝节阻抗变换器级连的方式来扩展带宽,利用ADS软件进行设计、仿真、优化,实现了在1~3 GHz的频带内,S21(S31)近似为-3 dB,输入输出反射系数小于-18 dB,隔离度小于-20 dB。     

一种新型双频Wilkinson功分器的设计

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.     

微型LTCC Wilkinson功率分配器的设计＊

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。     

带状线宽带Wilkinson一分四功分器的设计

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。     

Modified design of Wilkinson power divider for harmonic suppression

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.     

用于微波组件的LTCC Wilkinson功分器设计

基于LTCC工艺,设计了一种可用于微波组件的新型三维Wilkinson功分器,设计指标为:工作频带介于2.2～2.7GHz,插入损耗<0.5 dB,隔离度>20 dB,驻波比<1.30.使用HFSS软件为该功分器建立了模型并进行了仿真计算.仿真结果表明:该功分器在工作频带内的插入损耗<0.3 dB,隔离度>20dB,驻...     

Wilkinson power divider with extended ports for dual-band operation

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.     

UHF波段宽带集总Wilkinson功率分配器的设计

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   

宽带Wilkinson功分器的设计仿真与制作

利用Ansoft公司的HFSS软件对设计宽带Wilkinson功分器模型进行仿真,制作出了工作频带为0.8～2.5 GHz,尺寸为4.0 cm×3.0 cm×0.5 cm的宽带功分器并进行了测试,仿真结果和实物测试结果比较接近。该功分器在整个频带范围内具有良好的性能指标,传输损耗<0.8 dB,隔离度>20 dB,该功分器实现了宽带化以及小型化。由于其工作频率处于ISM频段内,因此可广泛应用于GPS、蓝牙等通讯系统中。