✦ LIBER ✦

Design and measurement of microstrip ferrite coupled line circulators

✍ Scribed by C. S. Teoh; L. E. Davis

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 249 KB
Volume: 11
Category: Article
ISSN: 1096-4290
DOI: 10.1002/mmce.1013

No coin nor oath required. For personal study only.

✦ Synopsis

The design of microstrip ferrite coupled line (MFCL) circulators using normal mode theory and the first proof-of-principle experiments are described. The longitudinally magnetized ferrite slab is positioned on top of a pair of microstrip lines to form the FCL and this is used with a T -junction and a novel hybrid coupler to form a three-port and a four-port circulator, respectively. The results show MFCL circulator behavior for the first time, and impedance levels and discontinuities are discussed.

📜 SIMILAR VOLUMES

Performance of stripline-type ferrite co

Performance of stripline-type ferrite coupled line circulators

✍ C. K. Queck; L. E. Davis; K. Xie; K. Newsome; B. Climer; N. E. Priestley 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 151 KB

The normal-mode approach is used to design stripline-type ferrite coupled line circulators with alumina as a substrate and ferrite as a superstrate. The measurements that are taken clearly demonstrate the nonreciprocal behavior of these devices, with an average insertion loss of 5 dB and an isolatio

Design of microstrip line-fed patch arra

Design of microstrip line-fed patch arrays including mutual coupling

✍ Yang, Hung-Yu David ;Chen, C. Harry ;Castaneda, Jesse A. ;Wong, William C. 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 828 KB

## Abstract A computer‐aided design algorithm is developed to facilitate the design of E‐plane series‐fed patch arrays. A rigorous moment method is used to compute the impedance of and the currents on each patch element in the array. Mutual coupling between adjacent patch elements is included in th

Investigations of the circulation effect

Investigations of the circulation effects in the structure using ferrite coupled slot-line section

✍ A. Kusiek; M. Marynowski; J. Mazur 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 482 KB

## Abstract This paper describes investigations of the longitudinally ferrite circulator realized in slot‐line technology. The proposed planar structure of circulator allowed to achieve small dimensions of the device. Also, the insertion losses comparable to ones actually published for microstrip s

Design of capacitive coupled resonator m

Design of capacitive coupled resonator microstrip filter

✍ J. S. Mandeep; Prabhu; S. Jovanovic 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 157 KB

## Abstract A microstrip bandpass filter with a new type of capacitive‐coupled resonator is presented. The filter is designed to be smaller compared with the same type of parallel‐coupled bandpass filter. The filter is designed for a centre frequency of 2.5 GHz that lies in the S‐band frequency ran

Design and analysis of microstrip-line-c

Design and analysis of microstrip-line-coupled NRD guide filter based on integral equation techniques

✍ Duochuan Li; Francois Boone; Ke Wu 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 401 KB 👁 1 views

Integral equation techniques which include an order-reduced volume integral equation approach for NRD guide circuits and a generalized surface-volume integral equation approach for planar-NRD guide hybrid circuits have been presented in this article. A gap-coupled NRD guide filter is designed based

Design of a periodically nonuniform coup

Design of a periodically nonuniform coupled microstrip lines (PNCML) filter using the novel method of lines

✍ Amr A. Abas; Hossam A. Saker; Esmat A. Abdallah; Hadya M. El-Henawy 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 304 KB

## Abstract A new eigenmode algorithm based on the method of lines and the generalized transmission line equations is applied on full‐wave analysis of (3‐D) MMIC components. The analytical calculation in the direction of propagation enables the analysis of structures of very short or long interconn