中圖分類號(hào)： TN713 文獻(xiàn)標(biāo)識(shí)碼： A DOI：10.16157/j.issn.0258-7998.200030 中文引用格式： 張志文，王策興,，粟濤. 一種便捷的用于片上電源網(wǎng)的高阻射頻隔離器[J].電子技術(shù)應(yīng)用,，2020，46(7)：10-14. 英文引用格式： Zhang Zhiwen,，Wang Cexing,，Su Tao. An agile high input impedance RF choke for on-chip power distribution network[J]. Application of Electronic Technique，2020,，46(7)：10-14.
An agile high input impedance RF choke for on-chip power distribution network
Zhang Zhiwen,，Wang Cexing，Su Tao
School of Electronics and Information Technology,，Sun Yat-sen University,，Guangzhou 510006，China
Abstract： Chokes in integrated circuits and system in packages are used between power grids and active devices. It can maintain DC biasing and RF isolation of active circuit, and its topological structure should match power network structure. In this paper, a wedge-shaped choke is proposed to solve the problem of complicated shape, complicated design procedure and difficulty in embedding power network of conventional RF choke. Its topological structure is similar to strip power grid. The choke consists of an outer arm and an internal rail whose location can be determined by stop-band frequency. The choke exhibits high input impedance in the stop-band once the flare angle of outer arms is at an appropriate value. The design idea is validated by HFSS electromagnetic field simulation. The prototype of the choke is fabricated using printed circuit technology. Both simulation and measurement prove the effectiveness of the choke. Its structure and design process are simple, and it can be easily embedded in IC chip. Even digital engineers can easily implement it.
Key words : band-stop filter,；high impedance,；integrated circuits,；agile design
