Effective height

In telecommunications, the effective height of an antenna is the height of the antenna's center of radiation above the ground.

In low-frequency applications involving loaded or nonloaded vertical antennas, the effective height is the moment of the current distribution in the vertical section, divided by the input current. For an antenna with a symmetrical current distribution, the center of radiation is the center of the distribution. For an antenna with asymmetrical current distribution, the center of radiation is the center of current moments when viewed from points near the direction of maximum radiation.

In antenna theory, it is often used interchangeably with antenna effective length, where it is defined as the ratio of the open circuit voltage across the antenna's terminals to the incident electric field of a radio signal.

See also

References

Public Domain This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22. (in support of MIL-STD-188).


Stub icon

This article related to telecommunications is a stub. You can help Wikipedia by expanding it.

Read other articles:

Timor Belanda

Peta Timor Belanda hingga tahun 1911 Timor Belanda (Belanda: Nederlands-Timorcode: nl is deprecated ) adalah jajahan Belanda yang berada di Timor Barat, Kepulauan Sunda Kecil, sejak pertengahan abad ke-17 hingga tahun 1950. Saat ini, wilayah tersebut masuk Provinsi Nusa Tenggara Timur. Timor Belanda beribu kota di Kupang. Sejarah Koloni tersebut berada di bagian barat Pulau Timor dan juga sejumlah pulau, antara lain: Rote Sawu Sumba Solor Flores Timur Kisar (antara tahun 1912-1926) Penjelajah...

 

أبي فوق الشجرة (فيلم)

أبي فوق الشجرةملصق الفيلممعلومات عامةالصنف الفني موسيقي استعراضيتاريخ الصدور 17 فبراير 1969مدة العرض 142 دقيفةاللغة الأصلية العربيةالبلد  مصرالطاقمالمخرج حسين كمالالمخرج المساعد حسن إبراهيم — محمد عبد العزيز — أحمد يحيى الكاتب إحسان عبد القدوسالسيناريو إحسان عبد القدو...

 

سفارة بولندا في واشنطن العاصمة

سفارة بولندا في الولايات المتحدة بولندا الولايات المتحدة   الإحداثيات 38°55′28″N 77°02′13″W / 38.9244°N 77.0369°W / 38.9244; -77.0369  البلد الولايات المتحدة  المكان واشنطن العاصمة  الاختصاص الولايات المتحدة،  وباهاماس[1]  الموقع الالكتروني الموقع الرسمي  ت�...

العلاقات اللوكسمبورغية النيكاراغوية

العلاقات اللوكسمبورغية النيكاراغوية لوكسمبورغ نيكاراغوا   لوكسمبورغ   نيكاراغوا تعديل مصدري - تعديل   العلاقات اللوكسمبورغية النيكاراغوية هي العلاقات الثنائية التي تجمع بين لوكسمبورغ ونيكاراغوا.[1][2][3][4][5] مقارنة بين البلدين هذه مقارنة �...

 

Marselino Ferdinan

Marselino Ferdinan Ferdinan bermain untuk Indonesia U-23 at the Pesta Olahraga Asia Tenggara 2023Informasi pribadiNama lengkap Marselino Ferdinan PhilipusTanggal lahir 9 September 2004 (umur 19)[1]Tempat lahir Jakarta, IndonesiaTinggi 178 m (584 ft 0 in)[2]Posisi bermain Gelandang serang, sayapInformasi klubKlub saat ini DeinzeNomor 27Karier junior2020 Persebaya SurabayaKarier senior*Tahun Tim Tampil (Gol)2021–2023 Persebaya Surabaya 34 (7)2023– Deinze...

 

Bank Skotlandia

Bank of Scotland plcGedung kantor pusat di The MoundNama asliBanca na h-Alba (Gaelic)Bank o Scotland (Scots)JenisPerusahaan swasta terbatasIndustriLayanan keuanganDidirikanThe Governor and Company of the Bank of Scotland17 Juli 1695; 328 tahun lalu (1695-07-17)KantorpusatEdinburgh, SkotlandiaProdukBanking and InsuranceTotal aset£359 miliar (2016) [1]Karyawan20,000IndukLloyds Banking GroupDivisi Halifax Birmingham Midshires Intelligent Finance Situs webwww.bankofscotland.co.uk Th...

Renfrew

Town in Renfrewshire, Scotland For other uses, see Renfrew (disambiguation). Human settlement in ScotlandRenfrewScottish Gaelic: Rinn FriùScots: Renfrew[1]Renfrew Town Hall and centreArms of Renfrew Community CouncilRenfrewShow map of ScotlandRenfrewLocation within RenfrewshireShow map of Glasgow council areaRenfrewRenfrew (Renfrewshire)Show map of RenfrewshirePopulation24,270 (mid-2020 est.)[2]OS grid referenceNS519186Council areaRenfrewshireLieutena...

 

Top of the Pops (magazine)

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Top of the Pops magazine – news · newspapers · books · scholar · JSTOR (September 2014) (Learn how and when to remove this template message) Top of the PopsEditorPeter HartCategoriesMusic magazineFrequencymonthlyTotal circulation(2022)36,485[1]Firs...

 

William Grant Craib

British botanist William Grant Craib FLS FRSE (10 March 1882 in Banff, Aberdeenshire – 1 September 1933 in Kew) was a British botanist. Craib was Regius Professor of Botany at Aberdeen University and later worked at the Royal Botanic Gardens, Kew.[1][2] Life Craib was born in Banff, Aberdeenshire in northern Scotland on 10 March 1882 and he was educated at Banff Academy and Fordyce Academy.[3] He entered Aberdeen University as an Art student but due to problems with ...

Cao Wei

Chinese kingdom (220–266) during the Three Kingdoms period This article is about the Three Kingdoms state. For the Northern and Southern Dynasties Wei dynasty, see Northern Wei. For the modern curator, see Cao Wei (curator). Former Wei redirects here. For other no longer extant Weis, see Wei (disambiguation). Wei魏220–266The territories of Cao Wei (in yellow), 262 AD.CapitalXuchang (220–226),[1] Luoyang (226–266)Common languagesMiddle ChineseReligion Taoism, Confucianism...

 

Natale con i tuoi (film)

Questa voce sull'argomento film commedia è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Natale con i tuoiUna scena del filmTitolo originaleA Merry Friggin' Christmas Paese di produzioneStati Uniti d'America Anno2014 Durata78 min Generecommedia RegiaTristram Shapeero SceneggiaturaPhil Johnston ProduttoreAnthony e Joe Russo, Tom Rice, Michael Flynn Distribuzione in italianoUniversal Pictures MusicheLudw...

 

Kim Sung-ryung

Ini adalah nama Korea; marganya adalah Kim. Kim Sung-ryungKim pada April 2018Nama asal김성령Lahir8 Februari 1967 (umur 57)Seoul, Korea SelatanNama lainKim Sung-ryoungPendidikanInstitut Teknologi InhaUniversitas Kyung HeeUniversitas Kajian Luar Negeri HankukPekerjaanPemeranTahun aktif1988–sekarangTinggi168 m (551 ft 2 in)GelarMiss Korea 1988Suami/istriLee Ki-soo ​(m. 1996)​Anak2 Pemenang kontes kecantikanJumlah film16 (pada A...

Rue Saint-Honoré por la tarde. Efecto de lluvia

Rue Saint-Honoré por la tarde. Efecto de lluvia. Autor Camille PissarroCreación 1897Ubicación Museo Nacional Thyssen-Bornemisza (España)Material Lienzo y ÓleoDimensiones 81 centímetros x 65 centímetros[editar datos en Wikidata] Rue Saint-Honoré por la tarde. Efecto de lluvia es una pintura al óleo de 1897 de Camille Pissarro que se encuentra en el Museo Thyssen-Bornemisza de Madrid. Forma parte de una serie de quince obras que el artista pintó durante el invierno de 1897 y...

 

Antonov Airlines

Cet article est une ébauche concernant une compagnie aérienne, une entreprise et l’Ukraine. Vous pouvez partager vos connaissances en l’améliorant (comment ?). Les entreprises étant sujet à controverse, n’oubliez pas d’indiquer dans l’article les critères qui le rendent admissible. Pour l’article homonyme, voir Antonov. Antonov Airlines No other name carries more weightCodes IATAOACIIndicatif d'appel (pas de code AITA [1]) ADB[2] ANTONOV BUREAU Repères historiques Dat...

 

Noe Zhordania

Georgian journalist, intellectual, revolutionary and politician Noe Zhordaniaნოე ჟორდანიაZhordania in 1920Head of the Government of the Democratic Republic of Georgia in ExileIn office18 March 1921 – 11 January 1953Preceded byHimself as Prime Minister of GeorgiaSucceeded byGovernment in Exile dissolved2nd Prime Minister of GeorgiaIn office24 June 1918[1] – 18 March 1921Preceded byNoe RamishviliSucceeded byBudu Mdivani (As Chairman of the Cou...

Aachen

AachenPanoraman kota Aachen terlihat Katedral Aachen BenderaLambang kebesaranLetak NegaraJermanNegara bagianNordrhein-WestfalenWilayahKolnKreisAachen Pemerintahan • Lord MayorSibylle Keupen (Independen) • Governing partiesGrüne / SPDLuas • Total160,83 km2 (6,210 sq mi)Ketinggian266 m (873 ft)Populasi (2008-06-30) • Total257.935 • Kepadatan16/km2 (42/sq mi)Zona waktuWET/WMPET (UTC+1/+2)Kode pos52062...

 

Torque tube

Scan from 1937 Manual of Driving and Maintenance for Mechanical Vehicles (Wheeled), via HMSO, part of OPSI. The diagonal radius arms are discretionary. A torque tube system is a power transmission and braking technology that involves a stationary housing around the drive shaft, often used in automobiles with a front engine and rear drive. The torque tube consists of a large diameter stationary housing between the transmission and rear end that fully encloses a rotating tubular steel or small...

 

シンガポール市街地コース

マリーナベイ・ストリート・サーキットMarina Bay Street Circuit2018年の空撮より所在地 シンガポール標準時GMT +8座標北緯1度17分29.51秒 東経103度51分49.86秒 / 北緯1.2915306度 東経103.8638500度 / 1.2915306; 103.8638500座標: 北緯1度17分29.51秒 東経103度51分49.86秒 / 北緯1.2915306度 東経103.8638500度 / 1.2915306; 103.8638500オープン2008年8月31日 (15年前) (2008-08-3...

乔冠华

乔冠华 中华人民共和国外交部部长 中国人民对外友好协会顾问 任期1974年11月—1976年12月总理周恩来 → 华国锋前任姬鹏飞继任黄华 个人资料性别男出生(1913-03-28)1913年3月28日 中華民國江蘇省盐城县逝世1983年9月22日(1983歲—09—22)（70歲） 中华人民共和国北京市籍贯江蘇鹽城国籍 中华人民共和国政党 中国共产党配偶明仁（1940年病逝） 龚澎（1970年病逝） 章含�...

 

Équipe cycliste Decathlon AG2R La Mondiale

Decathlon-AG2R La MondialeLogo de l'équipe depuis 2024.InformationsStatuts Équipe pro (1992-1998)Groupe Sportif I (d) (1997-2000)Groupe Sportif II (d) (2001)Groupe Sportif I (d) (2002-2004)continentale pro (2005)UCI ProTeam (2006-2014)UCI WorldTeam (depuis 2015)Codes UCI A2R (de 2000 à 2007), ALM (de 2008 à 2020), ACT (de 2021 à 2023) et DAT (depuis 2024)Discipline Cyclisme sur routePays  FranceCréation 1992Saisons 33Budget 26 millions d'euros (2024)[1]Marque de cycles Routens (199...