H. Orchard

1.2k citations

45 papers · 848 indexed · h-index 15

Impact in

Signal Processing top 5%
- Digital Filter Design and Implementation
Electrical and Electronic Engineering top 10%
- Radio Frequency Integrated Circuit Design
- Microwave Engineering and Waveguides
- Electromagnetic Compatibility and Noise Suppression
- Advancements in PLL and VCO Technologies

Papers in

Signal Processing 13
- Digital Filter Design and Implementation 13
Computational Theory and Mathematics 7

Co-authors: Gábor C. Temes A.N. Willson S.E. Sussman-Fort John E. Kurtz William T. Thomson S. Darlington Hikaru Watanabe
Journals: Electronics Letters (7 papers)Proceedings of the IEEE (2 papers)IEEE Transactions on Circuits and Systems (11 papers)IEEE Journal of Solid-State Circuits (1 paper)IEEE Transactions on Signal Processing (1 paper)
Partner nations: United States Japan

In The Last Decade

H. Orchard

41 papers receiving 703 citations

Peers

Countries citing papers authored by H. Orchard

Since Specialization

Citations

This map shows the geographic impact of H. Orchard's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by H. Orchard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Orchard more than expected).

Fields of papers citing papers by H. Orchard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Orchard. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by H. Orchard. The network helps show where H. Orchard may publish in the future.

Co-authorship network

The 7 scholars most cited alongside H. Orchard, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with H. Orchard Line = papers co-authored together H. Orchard links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	An efficient resultant for determining reciprocal zeros in polynomials Linear Algebra and its Applications ·A.N. Willson, H. Orchard	2004	2
2	On the computation of a minimum-phase spectral factor IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications ·H. Orchard, A.N. Willson	2003	14
3	Elliptic functions for filter design IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications ·H. Orchard, A.N. Willson	1997	23
4	An improvement to the Powell and Chau linear phase IIR filters IEEE Transactions on Signal Processing ·A.N. Willson, H. Orchard	1994	16
5	Stabilizing polynomials by making their higher-order coefficients sufficiently small IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications ·G. Saritha, H. Orchard, A.N. Willson	1992	1
6	Sensitivity formulas for terminated lossless two-ports IEEE Transactions on Circuits and Systems ·H. Orchard, Gábor C. Temes, Rose C. Adrianza	1985	10
7	Image-parameter approximations for designing linear-phase filters IEEE Transactions on Circuits and Systems ·H. Orchard, F. Alleman	1978	1
8	New active-gyrator circuit Electronics Letters ·H. Orchard, A.N. Willson	1974	28
9	A design technique for vestigial-sideband filters IEEE Transactions on Circuits and Systems ·H. Orchard, Gábor C. Temes	1974	1
10	First-order sensitivity and worst case analysis of doubly terminated reactance two-ports IEEE Transactions on Circuit Theory ·Gábor C. Temes, H. Orchard	1973	44
11	Filter Design Using Transformed Variables IEEE Transactions on Circuit Theory ·H. Orchard, Gábor C. Temes	1968	93
12	What, if any, are the important unsolved questions facing filter theorists today? IEEE Transactions on Circuit Theory ·S. Darlington, A. Zehnder, H. Orchard, Hikaru Watanabe	1968	1
13	Maximally flat approximation techniques Proceedings of the IEEE ·H. Orchard, Gábor C. Temes	1968	5
14	Bandpass-filter realisation using gyrators Electronics Letters ·Azhar Che Lah, H. Orchard	1967	10
15	Inductorless filters Electronics Letters ·H. Orchard	1966	225
16	Integratable gyrator using m.o.s. and bipolar transistors Electronics Letters ·Azhar Che Lah, H. Orchard	1966	19
17	Methods of Filter Design IEEE Transactions on Circuit Theory ·H. Orchard	1965	1
18	Computation of Elliptic Functions of Rational Fractions of a Quarterperiod IRE Transactions on Circuit Theory ·H. Orchard	1958	15
19	Optimum coupling networks IRE Transactions on Circuit Theory ·William T. Thomson, H. Orchard	1957	1
20	Improved matrix and determinant methods for solving networks IRE Transactions on Circuit Theory ·H. Orchard	1955	2

About H. Orchard

H. Orchard is a scholar working on Signal Processing, Computational Theory and Mathematics, Electrical and Electronic Engineering, Numerical Analysis and Computational Mechanics, having authored 45 papers that have together received 848 indexed citations. Recurring topics across this work include Digital Filter Design and Implementation (13 papers), Advanced Adaptive Filtering Techniques (7 papers), Analog and Mixed-Signal Circuit Design (5 papers), Radio Frequency Integrated Circuit Design (4 papers), Electromagnetic Compatibility and Noise Suppression (4 papers), Microwave Engineering and Waveguides (4 papers), Acoustic Wave Phenomena Research (4 papers) and Photonic and Optical Devices (3 papers). The work is most often cited by research in Signal Processing (232 citations), Electrical and Electronic Engineering (519 citations), Biomedical Engineering (364 citations), Computational Mechanics (154 citations) and Computational Theory and Mathematics (77 citations). H. Orchard has collaborated with scholars based in United States and Japan. Frequent co-authors include Gábor C. Temes, A.N. Willson, S.E. Sussman-Fort, John E. Kurtz, William T. Thomson, S. Darlington and Hikaru Watanabe. Their work appears in journals such as Electronics Letters, Proceedings of the IEEE, IEEE Transactions on Circuits and Systems, IEEE Journal of Solid-State Circuits and IEEE Transactions on Signal Processing.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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