dipole antenna - 2025 Penn Bowl

Question

The characteristic impedance of coaxial cables was specified at around 77 ohms in order to match the characteristic impedance of these devices in free space. For 10 points each:

[10h] Name these devices which despite the theoretically matching impedances are typically connected to coaxial cables with a balun because of the necessity for balanced line inputs for their common center-fold variant.

ANSWER: dipole antenna [prompt on dipole or antenna]

[10m] This physicist patented an early coaxial cable, in addition to developing the telegrapher’s equations. Like Arthur E. Kennelly, he predicted the existence of the ionosphere.

ANSWER: Oliver Heaviside

[10e] This kind of material forms the inside of a coaxial cable, surrounded by a dielectric separator and then the shield. This kind of material is the opposite of an insulator.

ANSWER: conductors

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Summary


2025 Penn Bowl - BU	11/01/25	Y	4	12.50	100%	25%	0%
2025 Penn Bowl - CWRU	11/01/25	Y	3	10.00	100%	0%	0%
2025 Penn Bowl - Mainsite (UPenn)	11/01/25	Y	6	13.33	100%	33%	0%
2025 Penn Bowl - Murray State	11/08/25	Y	2	15.00	100%	50%	0%
2025 Penn Bowl - Northwestern	10/25/25	Y	4	15.00	100%	50%	0%
2025 Penn Bowl - Online	11/08/25	Y	2	10.00	100%	0%	0%
2025 Penn Bowl - Ottawa	11/01/25	Y	7	14.29	100%	43%	0%
2025 Penn Bowl - Stanford	10/25/25	Y	4	15.00	100%	50%	0%
2025 Penn Bowl - UK	11/01/25	Y	9	13.33	100%	33%	0%
2025 Penn Bowl - UNC	11/01/25	Y	2	10.00	100%	0%	0%
2025 Penn Bowl - WashU	11/01/25	Y	2	15.00	100%	50%	0%

Data


Brown	Harvard	10	10	20
I've been running into you in my lead plumbocene what could have benzene	MIT B	0	10	10
MIT A	Brandeis	0	10	10
Yale	RIT	0	10	10
CWRU	Michigan A	0	10	10
Michigan B	Michigan C	0	10	10
Pittsburgh	Ohio State A	0	10	10
Columbia A	NYU A	0	10	10
JHU A	JHU B	0	10	10
Maryland A	John Jay	10	10	20
Mount Sinai	Columbia B	10	10	20
NYU B	Maryland B	0	10	10
Maryland C	Swarthmore	0	10	10
Texas B	Central Oklahoma	10	10	20
Texas A	Oklahoma	0	10	10
UChicago B	Indiana	0	10	10
UChicago C	UChicago A	0	10	10
Purdue A	Illinois	10	10	20
abg academy	New Young Whigs of America	0	10	10
rusty shackleford	Wake Up Paddington A Washington Mystery	0	10	10
Northwestern A	Purdue B	10	10	20
Queen's is monitoring the situation	McGill B	0	10	10
Waterloo you are crooked	Aweille Kevin Fan osti continue comme ça	0	10	10
Ottawa 67s	Guelph perfomative male competition	10	10	20
Toronto Murder on the Rider Express	#OpenToBuzz	0	10	10
Toronto Operation PBSuccess	Toronto E	10	10	20
Carleton A	Toronto Sunshine Bubbles	0	10	10
Toronto G	McGill Fartlets	10	10	20
Berkeley B	Berkeley C	10	10	20
The best time to buzz was twenty clues ago. The second best time to buzz is now	In Search of Lost Clues	10	10	20
Berkeley A	Stanford A	0	10	10
Free Win	Stanford B	0	10	10
Galactic Ombudsmen	Hail to the Sheaf	0	10	10
The Bit and the Penndulum	1. Wawa 2. Blank Street 151. Black Sheep at Kings Cross rail	0	10	10
Bristold	Quiztian Bale in Ratman Begins	0	10	10
Knorr Stock Clue	Burnaburiash's Lapis Lazuli	10	10	20
Paul Quifford, or, It Was a Dark and Stormy Tournament	Coughing Baby	0	10	10
Chimp Brisket	Penn and the Art of Tossup-Bonus cycle Maintenance	10	10	20
Washed Scrubs	To buzz is to be perceived	10	10	20
why is it called a score clue if nobody scores points on it	question mark	0	10	10
Planck Sinatra	VT A	0	10	10
Wise Duke	UNC A	0	10	10
Truman State	VJ Edgecombe School of Interior Design - Edwardsville	0	10	10
WashU Kiki	WashU Bouba	10	10	20
Of Mice and Penn	Alas poor Warwick, I knew him Edinburgh	0	10	10