Hee-Ran Ahn: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

Don't use scam websites

1

New Design Formulas for Impedance-Transforming 3-dB Marchand Baluns

Hee-Ran Ahn, Sangwook Nam

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2011

Language:

english

File:

PDF, 856 KB

english, 2011

2

[IEEE 2006 Asia-Pacific Microwave Conference - Yokohama, Japan (2006.12.12-2006.12.15)] 2006 Asia-Pacific Microwave Conference - Coupling-compensated 180° phase shift coupled-Line filters terminated in arbitrary impedances

Hee-Ran Ahn,, kyoungjoon Min,, Daehyun Kang,, Sungchul Hong,, Bumman Kim,

Year:

2006

Language:

english

File:

PDF, 170 KB

english, 2006

3

Novel Generic Asymmetric and Symmetric Equivalent Circuits of 90° Coupled Transmission-Line Sections Applicable to Marchand Baluns

Ahn, Hee-Ran, Tentzeris, Manos M.

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2017

Language:

english

File:

PDF, 3.65 MB

english, 2017

4

Comments on “A Rigorous Design Methodology for Compact Planar Branch-Line and Rat-Race Couplers With Asymmetrical $T$-Structures”

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2013

Language:

english

File:

PDF, 448 KB

english, 2013

5

[IEEE 2004 IEEE MTT-S International Microwave Symposium Digest - Fort Worth, TX, USA (6-11 June 2004)] 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) - General design equations of N-way arbitrary power dividers

Hee-Ran Ahn,, Kwyro Lee,, Noh-Hoon Myung,

Year:

2004

Language:

english

File:

PDF, 198 KB

english, 2004

6

Wideband and Compact Impedance-Transforming 90° DC Blocks With Symmetric Coupled Transmission-Line Sections

Ahn, Hee-Ran, Tentzeris, Manos M.

Journal:

IEEE Transactions on Components Packaging and Manufacturing Technology

Year:

2018

Language:

english

File:

PDF, 1.89 MB

english, 2018

7

A Novel Compact Isolation Circuit Suitable for Ultracompact and Wideband Marchand Baluns

Ahn, Hee-Ran, Tentzeris, Manos M.

Journal:

IEEE Transactions on Circuits and Systems II: Express Briefs

Year:

2019

Language:

english

File:

PDF, 363 KB

english, 2019

8

Complex Impedance Transformers: Their Use in Designing Various Ultracompact and Wideband Power Dividers

Ahn, Hee-Ran, Tentzeris, Manos M.

Journal:

IEEE Microwave Magazine

Year:

2020

File:

PDF, 1.85 MB

2020

9

Asymmetric ring-hybrid phase shifters and attenuators

Hee-Ran Ahn, Wolff, I.

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2002

Language:

english

File:

PDF, 569 KB

english, 2002

10

Small Wideband Coupled-Line Ring Hybrids With No Restriction on Coupling Power

Hee-Ran Ahn, Bumman Kim

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2009

Language:

english

File:

PDF, 1.36 MB

english, 2009

11

Design Method for Butter–Cheby Bandpass Filters With Even Number of Resonators

Ahn, Hee-Ran, Nam, Sangwook

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2012

Language:

english

File:

PDF, 2.49 MB

english, 2012

12

[IEEE 1998 IEEE MTT-S International Microwave Symposium Digest (Cat. No.98CH36192) - Baltimore, MD, USA (7-12 June 1998)] 1998 IEEE MTT-S International Microwave Symposium Digest (Cat. No.98CH36192) - Three-port 3-dB power divider terminated by arbitrary impedances

Hee-Ran Ahn,, Wolff, I.

Year:

1998

Language:

english

File:

PDF, 268 KB

english, 1998

13

[IEEE 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011 - Baltimore, MD, USA (2011.06.5-2011.06.10)] 2011 IEEE MTT-S International Microwave Symposium - Compact impedance-transforming 3-dB three-port power dividers with modified asymmetric impedance transformers (MCCTs)

Ahn, Hee-Ran, Itoh, Tatsuo

Year:

2011

Language:

english

File:

PDF, 1.13 MB

english, 2011

14

[IEEE 2010 IEEE/MTT-S International Microwave Symposium - MTT 2010 - Anaheim, CA, USA (2010.05.23-2010.05.28)] 2010 IEEE MTT-S International Microwave Symposium - Isolation circuit of impedance-transforming 3-dB compact baluns for near perfect output matching and isolation

Ahn, Hee-Ran, Itoh, Tatsuo

Year:

2010

Language:

english

File:

PDF, 1.43 MB

english, 2010

15

[IEEE 2008 Asia Pacific Microwave Conference - Macau (2008.12.16-2008.12.20)] 2008 Asia-Pacific Microwave Conference - Branch-line hybrids with - 15 dB coupling power

Hee-Ran Ahn,, Jungjoon Kim,, Bumman Kim,

Year:

2008

Language:

english

File:

PDF, 137 KB

english, 2008

16

[IEEE 31st European Microwave Conference, 2001 - London, England (2001.10.4-2001.10.6)] 31st European Microwave Conference, 2001 - Asymmetric Three-Port 45? Power Dividers Composed of Small-Sized Impedance Transformers

Ahn, Hee-Ran, Wolff, Ingo

Year:

2001

Language:

english

File:

PDF, 3.61 MB

english, 2001

17

[IEEE 2007 Asia-Pacific Microwave Conference - (APMC 2007) - Bangkok, Thailand (2007.12.11-2007.12.14)] 2007 Asia-Pacific Microwave Conference - Left-Handed Small Impedance Transformers and Their Application to Arbitrary Phase Differentiated Lumped Baluns for Impedance Transforming

Ahn, Hee-Ran, Kim, Bumman

Year:

2007

Language:

english

File:

PDF, 866 KB

english, 2007

18

Asymmetric Passive Components in Microwave Integrated Circuits (Ahn/Asymmetric Passive Components in Microwave Integrated Circuits) || Conventional Three-Port Power Dividers

Year:

2006

Language:

english

File:

PDF, 391 KB

english, 2006

19

Asymmetric Passive Components in Microwave Integrated Circuits (Ahn/Asymmetric Passive Components in Microwave Integrated Circuits) || General Design Equations for N-Way Arbitrary Power Dividers

Year:

2006

Language:

english

File:

PDF, 542 KB

english, 2006

20

Asymmetric Passive Components in Microwave Integrated Circuits (Ahn/Asymmetric Passive Components in Microwave Integrated Circuits) || Small Impedance Transformers, CVTs and CCTs, and Their Applications to Small Power Dividers and Ring Filters

Year:

2006

Language:

english

File:

PDF, 954 KB

english, 2006

21

A ring filter switch for a low loss wideband and very sharp bandstop filter

Hee-Ran Ahn, Bumman Kim

Journal:

Microwave and Optical Technology Letters

Year:

2007

Language:

english

File:

PDF, 237 KB

english, 2007

22

Left-handed lumped transmission lines and left-handed small impedance transformers

Ahn Hee-Ran, Kim Bumman

Journal:

Microwave and Optical Technology Letters

Year:

2008

Language:

english

File:

PDF, 210 KB

english, 2008

23

Asymmetric four-port and branch-line hybrids

Hee-Ran Ahn, Wolff, I.

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2000

Language:

english

File:

PDF, 155 KB

english, 2000

24

Impedance-Transforming Symmetric and Asymmetric DC Blocks

Hee-Ran Ahn, Itoh, T.

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2010

Language:

english

File:

PDF, 1001 KB

english, 2010

25

Comments on "Bandwidth-Compensation Method for Miniaturized Parallel Coupled-Line Filters

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2011

Language:

english

File:

PDF, 55 KB

english, 2011

26

Complex Impedance Transformers Consisting of Only Transmission-Line Sections

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2012

Language:

english

File:

PDF, 2.46 MB

english, 2012

27

Compact Microstrip 3-dB Coupled-Line Ring and Branch-Line Hybrids With New Symmetric Equivalent Circuits

Ahn, Hee-Ran, Nam, Sangwook

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2013

Language:

english

File:

PDF, 2.40 MB

english, 2013

28

Reply to Comments on “Wideband Coupled-Line Microstrip Filters With High-Impedance Short-Circuited Stubs”

Ahn, Hee-Ran, Nam, Sangwook

Journal:

IEEE Microwave and Wireless Components Letters

Year:

2012

Language:

english

File:

PDF, 399 KB

english, 2012

29

Planar 10:1 unequal three-port power dividers using general design equations

Ahn, Hee-Ran, Kim, Young, Kim, Byungjoon

Journal:

Electronics Letters

Year:

2012

Language:

english

File:

PDF, 356 KB

english, 2012

30

Modified Asymmetric Impedance Transformers (MCCTs and MCVTs) and Their Application to Impedance-Transforming Three-Port 3-dB Power Dividers

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2011

Language:

english

File:

PDF, 1.37 MB

english, 2011

31

Three-port 3-dB power divider terminated by different impedances and its application to MMICs

Hee-Ran Ahn,, Wolff, I.

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

1999

Language:

english

File:

PDF, 289 KB

english, 1999

32

3-dB Power Dividers With Equal Complex Termination Impedances and Design Methods for Controlling Isolation Circuits

Ahn, Hee-Ran, Nam, Sangwook

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2013

Language:

english

File:

PDF, 2.99 MB

english, 2013

33

Compact UHF 3 dB MCCT Power Dividers

Ahn, Hee-Ran, Kim, Byungjoon, Nam, Sangwook

Journal:

IEEE Microwave and Wireless Components Letters

Year:

2014

Language:

english

File:

PDF, 723 KB

english, 2014

34

New Isolation Circuits of Compact Impedance-Transforming 3-dB Baluns for Theoretically Perfect Isolation and Matching

Ahn, Hee-Ran, Itoh, Tatsuo

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2010

Language:

english

File:

PDF, 1.36 MB

english, 2010

35

Arbitrary termination impedances, arbitrary power division, and small-sized ring hybrids

Hee-Ran Ahn,, Wolff, I., Ik-Soo Chang,

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

1997

Language:

english

File:

PDF, 254 KB

english, 1997

36

Wideband Microstrip Coupled-Line Ring Hybrids for High Power-Division Ratios

Ahn, Hee-Ran, Nam, Sangwook

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2013

Language:

english

File:

PDF, 2.75 MB

english, 2013

37

Reply to “Comments on Reply to Comments on “Wideband Coupled-Line Filters With High-Impedance Short-Circuited Stubs” ”

Journal:

IEEE Microwave and Wireless Components Letters

Year:

2014

Language:

english

File:

PDF, 791 KB

english, 2014

38

[IEEE IEEE MTT-S International Microwave Symposium - IMS 2003 - Philadelphia, PA, USA (8-13 June 2003)] IEEE MTT-S International Microwave Symposium Digest, 2003 - Small-sized wideband CVT- and CCT-ring filters

Hee-Ran Ahn,, Wolff, I., Noh-Hoon Myung,

Year:

2003

Language:

english

File:

PDF, 206 KB

english, 2003

39

[IEEE 2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components (IMWS) - Chengdu, China (2008.12.14-2008.12.15)] 2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components - Modified Small Asymmetric Impedance Transformers

Ahn, Hee-Ran, Kim, Bumman

Year:

2008

Language:

english

File:

PDF, 817 KB

english, 2008

40

Compact CVT-/CCT-Unequal Power Dividers for High-Power Division Ratios and Design Methods for Arbitrary Phase Differences

Journal:

IEEE Transactions on Microwave Theory and Techniques

Year:

2014

Language:

english

File:

PDF, 2.56 MB

english, 2014

41

[IEEE 29th European Microwave Conference, 1999 - Munich, Germany (1999.10.4-1999.10.6)] 29th European Microwave Conference, 1999 - Novel Ring Filters As Wide-Band 180? Transmission Lines

Ahn, Hee-Ran, Wolff, Ingo

Year:

1999

Language:

english

File:

PDF, 3.98 MB

english, 1999

42

Toward Integrated Circuit Size Reduction

Hee-Ran Ahn,, Bumman Kim,

Journal:

IEEE Microwave Magazine

Year:

2008

Language:

english

File:

PDF, 1.22 MB

english, 2008

43

Asymmetric Passive Components in Microwave Integrated Circuits (Ahn/Asymmetric Passive Components in Microwave Integrated Circuits) || Circuit Parameters

Year:

2006

Language:

english

File:

PDF, 722 KB

english, 2006

44

Comments on “On-Chip Miniaturized Diplexer Using Joint Dual-Mode Right-/Left-Handed Synthesized Coplanar Waveguides on GIPD Process”

Ahn, Hee-Ran, Tentzeris, Manos M.

Journal:

IEEE Microwave and Wireless Components Letters

Year:

2016

Language:

english

File:

PDF, 981 KB

english, 2016

45

A Novel Wideband, Compact, Microstrip Coupled-Line Ring Hybrid for Arbitrarily High Power-Division Ratios

Ahn, Hee-Ran, Tentzeris, Manos

Journal:

IEEE Transactions on Circuits and Systems II: Express Briefs

Year:

2016

Language:

english

File:

PDF, 388 KB

english, 2016

46

Triple-stacked microstrip patch antenna for multiband system

Ryu, Han-Cheol, Ahn, Hee-Ran, Lee, Sang-Hwa, Park, Wee Sang

Journal:

Electronics Letters

Year:

2002

Language:

english

File:

PDF, 174 KB

english, 2002

47

A new measurement technique on inherent-ring-resonance frequency using ring filters

Ahn, Hee-Ran, Lee, Kwyro

Journal:

IEICE Electronics Express

Year:

2004

Language:

english

File:

PDF, 395 KB

english, 2004

48

Design of Wideband Coupled Line DC Block with Compact Size

KIM, Byungjoon, NAM, Sangwook, AHN, Hee-Ran, SONG, Jae-Hoon

Journal:

IEICE Transactions on Electronics

Year:

2014

Language:

english

File:

PDF, 418 KB

english, 2014

49

Asymmetric Passive Components in Microwave Integrated Circuits (Ahn/Asymmetric Passive Components in Microwave Integrated Circuits) || Asymmetric Ring-Hybrid Phase Shifters and Attenuators

Year:

2006

Language:

english

File:

PDF, 857 KB

english, 2006

50

Asymmetric Passive Components in Microwave Integrated Circuits (Ahn/Asymmetric Passive Components in Microwave Integrated Circuits) || Ring Filters and Their Use in a New Measurement Technique for Inherent Ring-Resonance Frequency

Year:

2006

Language:

english

File:

PDF, 710 KB

english, 2006