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《Microwave and Wireless Components Letters, IEEE》2009,19(12):789-791
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《Microwave and Wireless Components Letters, IEEE》2008,18(8):521-523
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Meng-Ju Chiang Hsien-Shun Wu Ching-Kuang Tzuang 《Microwave and Wireless Components Letters, IEEE》2007,17(12):837-839
This work presents a Ka-band two-way 3 dB Wilkinson power divider using synthetic quasi-transverse electromagnetic (TEM) transmission lines (TLs). The synthetic quasi-TEM TL, also called complementary-conducting-strip TL (CCS TL), is theoretically analyzed. The equivalent TL model, whose production is based on the extracted results, is applied to the power divider design. The prototype is fabricated by the standard 0.18 mum 1P6M CMOS technology, showing the circuit size of 210.0 mumtimes390.0 mum without contact pads. The measurement results, which match the 50 Omega system, reveal perfect agreements with those of the simulations. The comparison reveals the following characteristics. The divider exhibits an equal power-split with the insertion losses (S21 and S31) of 3.65 dB. The return losses (S11, S22 and S33) of the prototype are higher than 10.0 dB from 30.0 to 40.0 GHz. 相似文献
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本文提出了一种基于DGS(Defected Ground structure)的不等功分威尔金森功分器的设计,实现了1GHz-2GHz频段内不等功分比为1:5 。由于加工工艺的限制,微带线的特性阻抗最高只能做到120Ω-130Ω。在接地板上的DGS引入了附加的等效电容和等效电感,这样使得微带线能够实现高于180Ω的特性阻抗。本文针对未加载DGS 和加载DGS
的威尔金森功分器均做了HFSS 仿真,均实现了1:5 的功分比。 相似文献
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《Microwave and Wireless Components Letters, IEEE》2009,19(12):783-785
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《Microwave and Wireless Components Letters, IEEE》2008,18(11):737-739
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新颖双频Wilkinson功率分配器的研究与设计 总被引:1,自引:0,他引:1
通过对三端口都加有微带线的新颖结构功率分配器的研究和理论分析,研制了一款适用于900 MHz射频识别(RFID)和2 140 MHz基站系统的双频段功率分配器。首先根据改进的Wilkinson功率分配器结构,通过奇模-偶模分析理论得出其设计电路参数方程;接着对电路参数方程求解获得具体的设计参数;然后根据设计参数搭建电路进行ADS仿真;最后对设计的功率分配器进行测试和分析。结果表明:设计的双频段功率分配器在工作的两个频段内都具有良好的性能,对两种系统具有实际的应用意义,同时表明奇模-偶模分析理论对设计实际的双频功率分配器具有重要价值。 相似文献
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《固体电子学研究与进展》2015,(6)
提出一种在2~2.4GHz频段内工作的新型Wilkinson功率分配器,该种功率分配器主要由耦合线加载传输线和可配置电容构成。完成了该种新型Wilkinson功率分配器的仿真设计和实物加工测试。该新型Wilkinson功率分配器结构紧凑,有利于电路的小型化。同时,根据设计需求,可以通过配置不同容值的电容配置该种功分器的谐波抑制特性。测试结果显示,带内插损在3.6dB左右,带内回波损耗优于-10.5dB,输出端口隔离度优于-17dB,对二次谐波抑制优于20dB,对三次、四次和五次谐波抑制均优于15dB。 相似文献
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《Microwave and Wireless Components Letters, IEEE》2006,16(8):452-454
The analysis and design of a triple-band equal-split Wilkinson power divider are described. The circuit proposed is well matched and isolated at three arbitrary frequencies. The design procedure for the three-section transmission-line transformer based equal-split Wilkinson power divider derived from the ideal transmission-line model is provided. Simulated and experimental results in microstrip technology are presented to verify the idea and the derived equations. 相似文献
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A new scheme is proposed for the dual-band operation of the Wilkinson power divider/combiner. The dual band operation is achieved by attaching two central transmission line stubs to the conventional Wilkinson divider. It has simple structure and is suitable for distributed circuit implementation. 相似文献
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In this paper, a novel unequal broadband out‐of‐phase power divider (PD) is presented. Double‐sided parallel‐strip lines (DSPSLs) are employed to achieve an out‐of‐phase response. Also, an asymmetric dual‐band matching structure with two external isolation resistors is utilized to obtain arbitrary unequal power division, in which the resistors are directly grounded for heat sinking. A through ground via (TGV), connecting the top and bottom sides of the DSPSLs, is used to short the isolation components. Additionally, this property can efficiently improve the broadband matching and isolation bandwidths. To investigate the proposed divider in detail, a set of design equations are derived based on the circuit theory and transmission line theory. The theoretical analysis shows that broadband responses can be obtained as proper frequency ratios are adopted. To verify the proposed concept, a sample divider with a power division of 2:1 is demonstrated. The measured results exhibit a broad bandwidth from 1.19 GHz to 2.19 GHz (59.2%) with a return loss better than 10 dB and port isolation of 18 dB. 相似文献
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以工作于100MHz 的Wilkinson 十八路等功分器为设计对象,结合宽带匹配设计方法——实频技术法,设计功分
器阻抗变换节,以达到小型化设计的目的。将实频技术引入阻抗变换节设计,采用集总元件构成的网络结构来取代微带
功分器的四分之一波长阻抗变换节,从而大大缩减了Wilkinson 十八功分器的整体尺寸。根据仿真模型制作了十八等功分
器实物,尺寸仅为10?10cm2,其插入损耗小于13.5dB,幅度波动小于0.2dB,隔离度大于18dB。 相似文献
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随着通信技术的加速发展,传统的Wilkinson功分器已经无法满足多频及宽带的技术需求。基于ADS仿真设计软件,根据传统的功分器原理和结构,设计了一款谐振频率在900MHz附近的标准Wilkinson功分器。考虑到目前的实际需求,对其结构进行了适当调整和改进,从而仿真设计出了频率在900MHz附近的宽带Wilkinson功分器以及谐振频率为900MHz和2.OGHz的双频Wilkinson功分器,并且对其进行了良率分析,最终的仿真结果实现了预期的传输特性。 相似文献
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Chih-Ming Lin Hsuan-Hung Su Jui-Chieh Chiu Yeong-Her Wang 《Microwave and Wireless Components Letters, IEEE》2007,17(10):700-702
This letter presents a planar power divider with an effective technique for nth harmonics suppression. The proposed technique served by a microstrip electromagnetic bandgap cell is used to suppress the nth harmonics and reduce the length of a quarter-wave line over 30% as compared to the conventional divider. The planar structure enables an easy circuit design in printed circuit boards. From the measured results, a 32.5 dB suppression for the third harmonic and a 12 dB suppression for the fifth harmonic is obtained while maintaining the characteristics of a conventional Wilkinson power divider. It is able to achieve less than 3.4 0.1 dB of the two equivalent insertion losses, less than 23dB of the return loss, and better than 25dB of isolation at 2.4GHz. 相似文献